[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate

C153H210Cl4N16O40 — CID 158284013

IUPAC[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate
SMILESCNCCCC(=O)N(C)[C@@H](C)C(=O)O[C@H]1CC(=O)N(C)c2cc(cc(OC)c2Cl)C/C(C)=C/C=C/[C@@H](OC)[C@@]2(O)C[C@H](OC(=O)N2)[C@@H](C)[C@@H]2O[C@@]12C.COc1cc2cc(c1Cl)N(C)C(=O)C[C@H](OC(=O)[C@H](C)N(C)C(=O)C1CCNCC1)[C@]1(C)O[C@H]1[C@H](C)[C@@H]1C[C@@](O)(NC(=O)O1)[C@H](OC)/C=C/C=C(\C)C2.COc1cc2cc(c1Cl)N(C)C(=O)C[C@H](OC(=O)[C@H](C)N(C)C(=O)CCCN)[C@]1(C)O[C@H]1[C@H](C)[C@@H]1C[C@@](O)(NC(=O)O1)[C@H](OC)/C=C/C=C(\C)C2.COc1cc2cc(c1Cl)N(C)C(=O)C[C@H](OC(=O)[C@H](C)N(C)C(=O)c1ccc3c(c1)CCNC3)[C@]1(C)O[C@H]1[C@H](C)[C@@H]1C[C@@](O)(NC(=O)O1)[C@H](OC)/C=C/C=C(\C)C2
InChIInChI=1S/C42H53ClN4O10.C38H53ClN4O10.C37H53ClN4O10.C36H51ClN4O10/c1-23-10-9-11-33(54-8)42(52)21-32(55-40(51)45-42)24(2)37-41(4,57-37)34(20-35(48)47(6)30-17-26(16-23)18-31(53-7)36(30)43)56-39(50)25(3)46(5)38(49)28-12-13-29-22-44-15-14-27(29)19-28;1-21-10-9-11-29(50-8)38(48)20-28(51-36(47)41-38)22(2)33-37(4,53-33)30(52-35(46)23(3)42(5)34(45)25-12-14-40-15-13-25)19-31(44)43(6)26-17-24(16-21)18-27(49-7)32(26)39;1-21-12-10-13-28(49-9)37(47)20-27(50-35(46)40-37)22(2)33-36(4,52-33)29(51-34(45)23(3)41(6)30(43)14-11-15-39-5)19-31(44)42(7)25-17-24(16-21)18-26(48-8)32(25)38;1-20-11-9-12-27(48-8)36(46)19-26(49-34(45)39-36)21(2)32-35(4,51-32)28(50-33(44)22(3)40(5)29(42)13-10-14-38)18-30(43)41(6)24-16-23(15-20)17-25(47-7)31(24)37/h9-13,17-19,24-25,32-34,37,44,52H,14-16,20-22H2,1-8H3,(H,45,51);9-11,17-18,22-23,25,28-30,33,40,48H,12-16,19-20H2,1-8H3,(H,41,47);10,12-13,17-18,22-23,27-29,33,39,47H,11,14-16,19-20H2,1-9H3,(H,40,46);9,11-12,16-17,21-22,26-28,32,46H,10,13-15,18-19,38H2,1-8H3,(H,39,45)/b11-9+,23-10+;11-9+,21-10+;13-10+,21-12+;12-9+,20-11+/t24-,25+,32+,33-,34+,37+,41+,42+;22-,23+,28+,29-,30+,33+,37+,38+;22-,23+,27+,28-,29+,33+,36+,37+;21-,22+,26+,27-,28+,32+,35+,36+/m1111/s1
InChIKeyGKNYDMLFDSXWHP-XBIVJTDESA-N
MW3055.25 g/mol
LogP14.76
Rot. Bonds29

About [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate

[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate (PubChem CID 158284013) has the molecular formula C153H210Cl4N16O40 and a molecular weight of 3055.25 g/mol. Its IUPAC name is [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate.

Molecular Properties

Compound Name[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate
PubChem CID158284013
Molecular FormulaC153H210Cl4N16O40
Molecular Weight3055.25 g/mol
Exact Mass3051.36
IUPAC Name[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate
SMILESCNCCCC(=O)N(C)[C@@H](C)C(=O)O[C@H]1CC(=O)N(C)c2cc(cc(OC)c2Cl)C/C(C)=C/C=C/[C@@H](OC)[C@@]2(O)C[C@H](OC(=O)N2)[C@@H](C)[C@@H]2O[C@@]12C.COc1cc2cc(c1Cl)N(C)C(=O)C[C@H](OC(=O)[C@H](C)N(C)C(=O)C1CCNCC1)[C@]1(C)O[C@H]1[C@H](C)[C@@H]1C[C@@](O)(NC(=O)O1)[C@H](OC)/C=C/C=C(\C)C2.COc1cc2cc(c1Cl)N(C)C(=O)C[C@H](OC(=O)[C@H](C)N(C)C(=O)CCCN)[C@]1(C)O[C@H]1[C@H](C)[C@@H]1C[C@@](O)(NC(=O)O1)[C@H](OC)/C=C/C=C(\C)C2.COc1cc2cc(c1Cl)N(C)C(=O)C[C@H](OC(=O)[C@H](C)N(C)C(=O)c1ccc3c(c1)CCNC3)[C@]1(C)O[C@H]1[C@H](C)[C@@H]1C[C@@](O)(NC(=O)O1)[C@H](OC)/C=C/C=C(\C)C2
InChIInChI=1S/C42H53ClN4O10.C38H53ClN4O10.C37H53ClN4O10.C36H51ClN4O10/c1-23-10-9-11-33(54-8)42(52)21-32(55-40(51)45-42)24(2)37-41(4,57-37)34(20-35(48)47(6)30-17-26(16-23)18-31(53-7)36(30)43)56-39(50)25(3)46(5)38(49)28-12-13-29-22-44-15-14-27(29)19-28;1-21-10-9-11-29(50-8)38(48)20-28(51-36(47)41-38)22(2)33-37(4,53-33)30(52-35(46)23(3)42(5)34(45)25-12-14-40-15-13-25)19-31(44)43(6)26-17-24(16-21)18-27(49-7)32(26)39;1-21-12-10-13-28(49-9)37(47)20-27(50-35(46)40-37)22(2)33-36(4,52-33)29(51-34(45)23(3)41(6)30(43)14-11-15-39-5)19-31(44)42(7)25-17-24(16-21)18-26(48-8)32(25)38;1-20-11-9-12-27(48-8)36(46)19-26(49-34(45)39-36)21(2)32-35(4,51-32)28(50-33(44)22(3)40(5)29(42)13-10-14-38)18-30(43)41(6)24-16-23(15-20)17-25(47-7)31(24)37/h9-13,17-19,24-25,32-34,37,44,52H,14-16,20-22H2,1-8H3,(H,45,51);9-11,17-18,22-23,25,28-30,33,40,48H,12-16,19-20H2,1-8H3,(H,41,47);10,12-13,17-18,22-23,27-29,33,39,47H,11,14-16,19-20H2,1-9H3,(H,40,46);9,11-12,16-17,21-22,26-28,32,46H,10,13-15,18-19,38H2,1-8H3,(H,39,45)/b11-9+,23-10+;11-9+,21-10+;13-10+,21-12+;12-9+,20-11+/t24-,25+,32+,33-,34+,37+,41+,42+;22-,23+,28+,29-,30+,33+,37+,38+;22-,23+,27+,28-,29+,33+,36+,37+;21-,22+,26+,27-,28+,32+,35+,36+/m1111/s1
InChIKeyGKNYDMLFDSXWHP-XBIVJTDESA-N
XLogP14.76
TPSA687.99 Ų
H-Bond Donors12
H-Bond Acceptors44
Rotatable Bonds29
Heavy Atoms213
Complexity—

Lipinski Rule of Five

4 violations

RuleValue
MW ≤ 5003055.25
LogP ≤ 514.76
H-Bond Donors ≤ 512
H-Bond Acceptors ≤ 1044

Analyze [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate with MolForge

Explore ADMET properties, 3D molecular structure, drug-likeness score, and discover similar compounds using our AI-powered platform.

Launch Full Analysis

Related Compounds

[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-20-methoxy-2,5,9,12,16-pentamethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-20-methoxy-2,5,9,12,16-pentamethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-20-methoxy-2,5,9,12,16-pentamethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[3-(methylamino)propanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-20-methoxy-2,5,9,12,16-pentamethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate;methane
CID 159121989
[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate
CID 118700541
[(1S,2R,3S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[3-(methylamino)propanoyl]amino]propanoate
CID 166642642
[(1S,2R,3S,5S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[3-aminopropanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-20-methoxy-2,5,9,12,16-pentamethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] N-(4-amino-2-chlorophenyl)carbamate
CID 165083256
(11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl) 2-[6-(2,5-dihydroxypyrrol-1-yl)hexanoyl-methylamino]propanoate
CID 123260494
[(1S,2R,5S,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(3-sulfanylpropanoyl)amino]propanoate
CID 171329373
[(1S,2R,3S,5S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[[4-amino-3-(trifluoromethyl)benzoyl]-methylamino]propanoate
CID 167219892
[(1S,2R,3S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[3-(2-aminoethyldisulfanyl)propanoyl-methylamino]propanoate
CID 155762882
[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[3-[[3-[[(2S)-1-[[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl]oxy]-1-oxopropan-2-yl]-methylamino]-3-oxopropyl]disulfanyl]propanoyl-methylamino]propanoate
CID 11564438
[(1S,2R,3R,5S,6R,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] 2-[methyl(propanoyl)amino]propanoate
CID 23305186
[(16E,18E)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] 2-[methyl-[2-(methylamino)propanoyl]amino]propanoate
CID 90167311
[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(propanoyl)amino]propanoate
CID 6325604

Frequently Asked Questions

What is the IUPAC name of [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate?
The IUPAC name of [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate (CID 158284013) is [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate.
What is the SMILES notation for [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate?
The canonical SMILES for [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate is CNCCCC(=O)N(C)[C@@H](C)C(=O)O[C@H]1CC(=O)N(C)c2cc(cc(OC)c2Cl)C/C(C)=C/C=C/[C@@H](OC)[C@@]2(O)C[C@H](OC(=O)N2)[C@@H](C)[C@@H]2O[C@@]12C.COc1cc2cc(c1Cl)N(C)C(=O)C[C@H](OC(=O)[C@H](C)N(C)C(=O)C1CCNCC1)[C@]1(C)O[C@H]1[C@H](C)[C@@H]1C[C@@](O)(NC(=O)O1)[C@H](OC)/C=C/C=C(\C)C2.COc1cc2cc(c1Cl)N(C)C(=O)C[C@H](OC(=O)[C@H](C)N(C)C(=O)CCCN)[C@]1(C)O[C@H]1[C@H](C)[C@@H]1C[C@@](O)(NC(=O)O1)[C@H](OC)/C=C/C=C(\C)C2.COc1cc2cc(c1Cl)N(C)C(=O)C[C@H](OC(=O)[C@H](C)N(C)C(=O)c1ccc3c(c1)CCNC3)[C@]1(C)O[C@H]1[C@H](C)[C@@H]1C[C@@](O)(NC(=O)O1)[C@H](OC)/C=C/C=C(\C)C2.
What is the InChIKey of [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate?
The InChIKey is GKNYDMLFDSXWHP-XBIVJTDESA-N. The full InChI is InChI=1S/C42H53ClN4O10.C38H53ClN4O10.C37H53ClN4O10.C36H51ClN4O10/c1-23-10-9-11-33(54-8)42(52)21-32(55-40(51)45-42)24(2)37-41(4,57-37)34(20-35(48)47(6)30-17-26(16-23)18-31(53-7)36(30)43)56-39(50)25(3)46(5)38(49)28-12-13-29-22-44-15-14-27(29)19-28;1-21-10-9-11-29(50-8)38(48)20-28(51-36(47)41-38)22(2)33-37(4,53-33)30(52-35(46)23(3)42(5)34(45)25-12-14-40-15-13-25)19-31(44)43(6)26-17-24(16-21)18-27(49-7)32(26)39;1-21-12-10-13-28(49-9)37(47)20-27(50-35(46)40-37)22(2)33-36(4,52-33)29(51-34(45)23(3)41(6)30(43)14-11-15-39-5)19-31(44)42(7)25-17-24(16-21)18-26(48-8)32(25)38;1-20-11-9-12-27(48-8)36(46)19-26(49-34(45)39-36)21(2)32-35(4,51-32)28(50-33(44)22(3)40(5)29(42)13-10-14-38)18-30(43)41(6)24-16-23(15-20)17-25(47-7)31(24)37/h9-13,17-19,24-25,32-34,37,44,52H,14-16,20-22H2,1-8H3,(H,45,51);9-11,17-18,22-23,25,28-30,33,40,48H,12-16,19-20H2,1-8H3,(H,41,47);10,12-13,17-18,22-23,27-29,33,39,47H,11,14-16,19-20H2,1-9H3,(H,40,46);9,11-12,16-17,21-22,26-28,32,46H,10,13-15,18-19,38H2,1-8H3,(H,39,45)/b11-9+,23-10+;11-9+,21-10+;13-10+,21-12+;12-9+,20-11+/t24-,25+,32+,33-,34+,37+,41+,42+;22-,23+,28+,29-,30+,33+,37+,38+;22-,23+,27+,28-,29+,33+,36+,37+;21-,22+,26+,27-,28+,32+,35+,36+/m1111/s1.
What are the key properties of [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate?
[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate has a molecular weight of 3055.25 g/mol, XLogP of 14.76, 29 rotatable bonds, 12 hydrogen bond donors, and 44 hydrogen bond acceptors.
Where does this data come from?
All data for [(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[4-aminobutanoyl(methyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl-[4-(methylamino)butanoyl]amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(piperidine-4-carbonyl)amino]propanoate;[(1S,2R,3S,5S,6S,16E,18E,20R,21S)-11-chloro-21-hydroxy-12,20-dimethoxy-2,5,9,16-tetramethyl-8,23-dioxo-4,24-dioxa-9,22-diazatetracyclo[19.3.1.110,14.03,5]hexacosa-10,12,14(26),16,18-pentaen-6-yl] (2S)-2-[methyl(1,2,3,4-tetrahydroisoquinoline-6-carbonyl)amino]propanoate is sourced from PubChem (CID 158284013), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).