About 2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate
2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate (PubChem CID 160528993) has the molecular formula C196H189N33O35
and a molecular weight of 3566.86 g/mol. Its IUPAC name is 2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate.
Frequently Asked Questions
What is the IUPAC name of 2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate?
The IUPAC name of 2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate (CID 160528993) is 2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate.
What is the SMILES notation for 2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate?
The canonical SMILES for 2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate is CC(C)(C)c1ccc(O)c(-n2n3c4ccc(C(=O)OCC(COC(=O)c5ccc6c(c5)n5n(-c7cc(C(C)(C)C)ccc7O)n65)(COC(=O)c5ccc6c(c5)n5n(-c7cc(C(C)(C)C)ccc7O)n65)COC(=O)c5ccc6c(c5)n5n(-c7cc(C(C)(C)C)ccc7O)n65)cc4n23)c1.CC(C)(C)c1ccc(O)c(-n2n3c4ccc(C(=O)OCC(COCC(COC(=O)c5ccc6c(c5)n5n(-c7cc(C(C)(C)C)ccc7O)n65)COC(=O)c5ccc6c(c5)n5n(-c7cc(C(C)(C)C)ccc7O)n65)COC(=O)c5ccc6c(c5)n5n(-c7cc(C(C)(C)C)ccc7O)n65)cc4n23)c1.Cc1ccc(O)c(-n2n3c4cccc(C(=O)OCCOC(COC(=O)c5cccc6c5n5n(-c7cc(C)ccc7O)n65)COC(=O)c5cccc6c5n5n(-c7cc(C)ccc7O)n65)c4n23)c1.
What is the InChIKey of 2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate?
The InChIKey is QVGZUDPZNSTYOT-UHFFFAOYSA-N. The full InChI is InChI=1S/C76H78N12O13.C73H72N12O12.C47H39N9O10/c1-73(2,3)49-17-25-65(89)61(33-49)85-77-53-21-13-45(29-57(53)81(77)85)69(93)98-39-43(40-99-70(94)46-14-22-54-58(30-46)82-78(54)86(82)62-34-50(74(4,5)6)18-26-66(62)90)37-97-38-44(41-100-71(95)47-15-23-55-59(31-47)83-79(55)87(83)63-35-51(75(7,8)9)19-27-67(63)91)42-101-72(96)48-16-24-56-60(32-48)84-80(56)88(84)64-36-52(76(10,11)12)20-28-68(64)92;1-69(2,3)45-17-25-61(86)57(33-45)82-74-49-21-13-41(29-53(49)78(74)82)65(90)94-37-73(38-95-66(91)42-14-22-50-54(30-42)79-75(50)83(79)58-34-46(70(4,5)6)18-26-62(58)87,39-96-67(92)43-15-23-51-55(31-43)80-76(51)84(80)59-35-47(71(7,8)9)19-27-63(59)88)40-97-68(93)44-16-24-52-56(32-44)81-77(52)85(81)60-36-48(72(10,11)12)20-28-64(60)89;1-26-13-16-39(57)36(21-26)51-48-33-10-4-7-30(42(33)54(48)51)45(60)64-20-19-63-29(24-65-46(61)31-8-5-11-34-43(31)55-49(34)52(55)37-22-27(2)14-17-40(37)58)25-66-47(62)32-9-6-12-35-44(32)56-50(35)53(56)38-23-28(3)15-18-41(38)59/h13-36,43-44,89-92H,37-42H2,1-12H3;13-36,86-89H,37-40H2,1-12H3;4-18,21-23,29,57-59H,19-20,24-25H2,1-3H3.
What are the key properties of 2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate?
2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate has a molecular weight of 3566.86 g/mol, XLogP of 31.15, 50 rotatable bonds, 11 hydrogen bond donors, and 68 hydrogen bond acceptors.
Where does this data come from?
All data for 2-[1,3-bis[[8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carbonyl]oxy]propan-2-yloxy]ethyl 8-(2-hydroxy-5-methylphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1,3,5-triene-2-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2,2-bis[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate;[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[3-[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxy-2-[[8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carbonyl]oxymethyl]propoxy]methyl]propyl] 8-(5-tert-butyl-2-hydroxyphenyl)-7,8,9-triazatricyclo[4.3.0.07,9]nona-1(6),2,4-triene-3-carboxylate is sourced from PubChem (CID 160528993), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).