6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one

C81H87Cl5F2N20O7 — CID 158620738

IUPAC6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one
SMILESCCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3ccc(F)c(F)c3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3ccc(NC(C)=O)cc3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3cccc(O)c3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3ccn[nH]3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3cn[nH]c3)c21
InChIInChI=1S/C19H21ClN4O2.C17H16ClF2N3O.C17H18ClN3O2.2C14H16ClN5O/c1-4-14(5-2)24-17-16(15(20)10-21-18(17)23-19(24)26)12-6-8-13(9-7-12)22-11(3)25;1-3-10(4-2)23-15-14(9-5-6-12(19)13(20)7-9)11(18)8-21-16(15)22-17(23)24;1-3-11(4-2)21-15-14(10-6-5-7-12(22)8-10)13(18)9-19-16(15)20-17(21)23;1-3-9(4-2)20-12-11(8-5-17-18-6-8)10(15)7-16-13(12)19-14(20)21;1-3-8(4-2)20-12-11(10-5-6-17-19-10)9(15)7-16-13(12)18-14(20)21/h6-10,14H,4-5H2,1-3H3,(H,22,25)(H,21,23,26);5-8,10H,3-4H2,1-2H3,(H,21,22,24);5-9,11,22H,3-4H2,1-2H3,(H,19,20,23);5-7,9H,3-4H2,1-2H3,(H,17,18)(H,16,19,21);5-8H,3-4H2,1-2H3,(H,17,19)(H,16,18,21)
InChIKeyHXYOZMWMARBBIE-UHFFFAOYSA-N
MW1667.98 g/mol
LogP19.42
Rot. Bonds21

About 6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one

6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one (PubChem CID 158620738) has the molecular formula C81H87Cl5F2N20O7 and a molecular weight of 1667.98 g/mol. Its IUPAC name is 6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one.

Molecular Properties

Compound Name6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one
PubChem CID158620738
Molecular FormulaC81H87Cl5F2N20O7
Molecular Weight1667.98 g/mol
Exact Mass1664.55
IUPAC Name6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one
SMILESCCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3ccc(F)c(F)c3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3ccc(NC(C)=O)cc3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3cccc(O)c3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3ccn[nH]3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3cn[nH]c3)c21
InChIInChI=1S/C19H21ClN4O2.C17H16ClF2N3O.C17H18ClN3O2.2C14H16ClN5O/c1-4-14(5-2)24-17-16(15(20)10-21-18(17)23-19(24)26)12-6-8-13(9-7-12)22-11(3)25;1-3-10(4-2)23-15-14(9-5-6-12(19)13(20)7-9)11(18)8-21-16(15)22-17(23)24;1-3-11(4-2)21-15-14(10-6-5-7-12(22)8-10)13(18)9-19-16(15)20-17(21)23;1-3-9(4-2)20-12-11(8-5-17-18-6-8)10(15)7-16-13(12)19-14(20)21;1-3-8(4-2)20-12-11(10-5-6-17-19-10)9(15)7-16-13(12)18-14(20)21/h6-10,14H,4-5H2,1-3H3,(H,22,25)(H,21,23,26);5-8,10H,3-4H2,1-2H3,(H,21,22,24);5-9,11,22H,3-4H2,1-2H3,(H,19,20,23);5-7,9H,3-4H2,1-2H3,(H,17,18)(H,16,19,21);5-8H,3-4H2,1-2H3,(H,17,19)(H,16,18,21)
InChIKeyHXYOZMWMARBBIE-UHFFFAOYSA-N
XLogP19.42
TPSA360.09 Ų
H-Bond Donors9
H-Bond Acceptors19
Rotatable Bonds21
Heavy Atoms115
Complexity—

Lipinski Rule of Five

4 violations

RuleValue
MW ≤ 5001667.98
LogP ≤ 519.42
H-Bond Donors ≤ 59
H-Bond Acceptors ≤ 1019

Analyze 6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one with MolForge

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Related Compounds

2-[5-[3-(tert-butylamino)pyrrolidin-1-yl]pyrazin-2-yl]-5-[1-(trideuteriomethyl)pyrazol-4-yl]phenol;5-(4-fluoropyrazol-1-yl)-2-[5-[(2,2,6,6-tetramethylpiperidin-4-yl)amino]pyrazin-2-yl]phenol;5-(1H-pyrazol-5-yl)-2-[5-[(2,2,6,6-tetramethylpiperidin-4-yl)amino]pyrazin-2-yl]phenol
CID 157890678
3-[2-hydroxy-4-(1H-pyrazol-4-yl)phenyl]-7-(2,2,6,6-tetramethylpiperidin-4-yl)-5H-imidazo[4,5-c]pyridazin-6-one;5-(1H-pyrazol-4-yl)-2-[5-(2,2,6,6-tetramethyl-1,3-dihydropyridin-4-yl)pyrrolo[2,3-b]pyrazin-2-yl]phenol;5-(1H-pyrazol-4-yl)-2-[7-(2,2,6,6-tetramethylpiperidin-4-yl)imidazo[4,5-c]pyridazin-3-yl]phenol
CID 158259394
5-[2,5-difluoro-4-(1H-pyrazol-4-yl)phenyl]-1-(2,2,6,6-tetramethylpiperidin-4-yl)imidazo[4,5-b]pyrazine;5-(1H-pyrazol-4-yl)-2-[1-(2,2,6,6-tetramethylpiperidin-4-yl)imidazo[4,5-b]pyrazin-5-yl]phenol;5-(1H-pyrazol-4-yl)-2-[7-(2,2,6,6-tetramethylpiperidin-4-yl)imidazo[4,5-c]pyridazin-3-yl]phenol
CID 159588060
1-[4-[6-chloro-8-fluoro-7-(2-fluoro-6-hydroxyphenyl)imidazo[1,2-a]pyridin-3-yl]piperazin-1-yl]prop-2-en-1-one;1-[4-[6-chloro-7-(2-fluoro-5-hydroxyphenyl)imidazo[1,2-a]pyridin-3-yl]piperazin-1-yl]prop-2-en-1-one;1-[4-[6-chloro-7-(2-fluorophenyl)imidazo[1,2-a]pyridin-3-yl]piperazin-1-yl]prop-2-en-1-one;1-[4-[6-chloro-7-(5-methyl-1H-indazol-4-yl)imidazo[1,2-a]pyridin-3-yl]piperazin-1-yl]prop-2-en-1-one
CID 159725442
3-tert-butyl-4-chloro-5-fluorophenol;1-tert-butyl-N,N-dimethylpiperidin-3-amine;4-tert-butyl-N,5-dimethylpyrimidin-2-amine;1-tert-butyl-N,N-dimethylpyrrolidin-3-amine;3-tert-butyl-2H-indazole;6-tert-butyl-5-methylpyridin-2-amine;4-tert-butyl-5-methylpyrimidin-2-amine;1-tert-butylpiperidin-3-amine;1-tert-butylpiperidin-3-ol;1-(3-tert-butylpiperidin-1-yl)ethanone;1-tert-butylpyrrolidin-3-amine;3-tert-butylpyrrolidine;1-(3-tert-butylpyrrolidin-1-yl)ethanone
CID 159987401
6-chloro-7-[4-[(dimethylamino)methyl]phenyl]-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-fluoro-4-methoxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(5-hydroxy-3-pyridinyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(1H-indazol-6-yl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]methyl]acetamide
CID 160322658
2-[5-[3-(tert-butylamino)pyrrolidin-1-yl]pyrazin-2-yl]-5-(1-methylpyrazol-4-yl)phenol;N-tert-butyl-1-[5-[2,3-difluoro-4-(1H-pyrazol-4-yl)phenyl]pyrazin-2-yl]pyrrolidin-3-amine;2-[5-[methyl-(2,2,6,6-tetramethylpiperidin-4-yl)amino]pyrazin-2-yl]-5-(triazol-2-yl)phenol
CID 161259618
7-[2-(aminomethyl)-4-pyridinyl]-6-chloro-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(1H-indazol-5-yl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-[2-(methoxymethyl)phenyl]-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(6-methoxy-2-pyridinyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)pyridine-2-carbonitrile
CID 161347084
4-[5-amino-3-(1,5-dimethylpyrazol-4-yl)pyrazin-2-yl]-2-chlorophenol;4-[5-amino-3-(2,5-dimethylpyrazol-3-yl)pyrazin-2-yl]-2-chlorophenol;4-[5-amino-3-(3,5-dimethyl-1H-pyrazol-4-yl)pyrazin-2-yl]-2-chlorophenol;4-[5-amino-3-(1-methylpyrazol-4-yl)pyrazin-2-yl]-2-chlorophenol;4-[5-amino-3-(1H-pyrazol-4-yl)pyrazin-2-yl]-2-chlorophenol;4-[5-amino-3-(2,4,5-trimethylpyrazol-3-yl)pyrazin-2-yl]-2-chlorophenol
CID 161857756

Frequently Asked Questions

What is the IUPAC name of 6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one?
The IUPAC name of 6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one (CID 158620738) is 6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one.
What is the SMILES notation for 6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one?
The canonical SMILES for 6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one is CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3ccc(F)c(F)c3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3ccc(NC(C)=O)cc3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3cccc(O)c3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3ccn[nH]3)c21.CCC(CC)n1c(=O)[nH]c2ncc(Cl)c(-c3cn[nH]c3)c21.
What is the InChIKey of 6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one?
The InChIKey is HXYOZMWMARBBIE-UHFFFAOYSA-N. The full InChI is InChI=1S/C19H21ClN4O2.C17H16ClF2N3O.C17H18ClN3O2.2C14H16ClN5O/c1-4-14(5-2)24-17-16(15(20)10-21-18(17)23-19(24)26)12-6-8-13(9-7-12)22-11(3)25;1-3-10(4-2)23-15-14(9-5-6-12(19)13(20)7-9)11(18)8-21-16(15)22-17(23)24;1-3-11(4-2)21-15-14(10-6-5-7-12(22)8-10)13(18)9-19-16(15)20-17(21)23;1-3-9(4-2)20-12-11(8-5-17-18-6-8)10(15)7-16-13(12)19-14(20)21;1-3-8(4-2)20-12-11(10-5-6-17-19-10)9(15)7-16-13(12)18-14(20)21/h6-10,14H,4-5H2,1-3H3,(H,22,25)(H,21,23,26);5-8,10H,3-4H2,1-2H3,(H,21,22,24);5-9,11,22H,3-4H2,1-2H3,(H,19,20,23);5-7,9H,3-4H2,1-2H3,(H,17,18)(H,16,19,21);5-8H,3-4H2,1-2H3,(H,17,19)(H,16,18,21).
What are the key properties of 6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one?
6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one has a molecular weight of 1667.98 g/mol, XLogP of 19.42, 21 rotatable bonds, 9 hydrogen bond donors, and 19 hydrogen bond acceptors.
Where does this data come from?
All data for 6-chloro-7-(3,4-difluorophenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-7-(3-hydroxyphenyl)-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-2-one;N-[4-(6-chloro-2-oxo-1-pentan-3-yl-3H-imidazo[4,5-b]pyridin-7-yl)phenyl]acetamide;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-4-yl)-3H-imidazo[4,5-b]pyridin-2-one;6-chloro-1-pentan-3-yl-7-(1H-pyrazol-5-yl)-3H-imidazo[4,5-b]pyridin-2-one is sourced from PubChem (CID 158620738), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).