8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene

C172H96N16O4S4 — CID 161180056

IUPAC8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene
SMILESc1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3c(c2)oc2ccccc23)nc(-c2cccc3c2sc2ccccc23)n1.c1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3c(c2)sc2ccccc23)nc(-c2ccc3oc4ccccc4c3c2)n1.c1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3sc4ccccc4c3c2)nc(-c2cccc3c2oc2ccccc23)n1.c1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3sc4ccccc4c3c2)nc(-c2cccc3oc4ccccc4c23)n1
InChIInChI=1S/4C43H24N4OS/c1-4-17-33-27(12-1)29-15-7-10-25-11-8-18-34(39(25)29)47(33)43-45-41(26-22-23-38-32(24-26)28-13-3-6-21-37(28)49-38)44-42(46-43)31-16-9-20-36-40(31)30-14-2-5-19-35(30)48-36;1-4-18-34-27(12-1)31-15-7-10-25-11-8-19-35(39(25)31)47(34)43-45-41(26-22-23-29-28-13-2-5-20-36(28)48-37(29)24-26)44-42(46-43)33-17-9-16-32-30-14-3-6-21-38(30)49-40(32)33;1-4-18-34-27(12-1)30-15-7-10-25-11-8-19-35(39(25)30)47(34)43-45-41(26-22-23-38-33(24-26)29-14-3-6-21-37(29)49-38)44-42(46-43)32-17-9-16-31-28-13-2-5-20-36(28)48-40(31)32;1-4-15-34-28(11-1)32-14-7-9-25-10-8-16-35(40(25)32)47(34)43-45-41(26-20-22-37-33(23-26)29-12-2-5-17-36(29)48-37)44-42(46-43)27-19-21-31-30-13-3-6-18-38(30)49-39(31)24-27/h4*1-24H
InChIKeyUSIDZJQFTHDEPZ-UHFFFAOYSA-N
MW2579.04 g/mol
LogP48.31
Rot. Bonds12

About 8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene

8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene (PubChem CID 161180056) has the molecular formula C172H96N16O4S4 and a molecular weight of 2579.04 g/mol. Its IUPAC name is 8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene.

Molecular Properties

Compound Name8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene
PubChem CID161180056
Molecular FormulaC172H96N16O4S4
Molecular Weight2579.04 g/mol
Exact Mass2576.67
IUPAC Name8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene
SMILESc1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3c(c2)oc2ccccc23)nc(-c2cccc3c2sc2ccccc23)n1.c1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3c(c2)sc2ccccc23)nc(-c2ccc3oc4ccccc4c3c2)n1.c1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3sc4ccccc4c3c2)nc(-c2cccc3c2oc2ccccc23)n1.c1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3sc4ccccc4c3c2)nc(-c2cccc3oc4ccccc4c23)n1
InChIInChI=1S/4C43H24N4OS/c1-4-17-33-27(12-1)29-15-7-10-25-11-8-18-34(39(25)29)47(33)43-45-41(26-22-23-38-32(24-26)28-13-3-6-21-37(28)49-38)44-42(46-43)31-16-9-20-36-40(31)30-14-2-5-19-35(30)48-36;1-4-18-34-27(12-1)31-15-7-10-25-11-8-19-35(39(25)31)47(34)43-45-41(26-22-23-29-28-13-2-5-20-36(28)48-37(29)24-26)44-42(46-43)33-17-9-16-32-30-14-3-6-21-38(30)49-40(32)33;1-4-18-34-27(12-1)30-15-7-10-25-11-8-19-35(39(25)30)47(34)43-45-41(26-22-23-38-33(24-26)29-14-3-6-21-37(29)49-38)44-42(46-43)32-17-9-16-31-28-13-2-5-20-36(28)48-40(31)32;1-4-15-34-28(11-1)32-14-7-9-25-10-8-16-35(40(25)32)47(34)43-45-41(26-20-22-37-33(23-26)29-12-2-5-17-36(29)48-37)44-42(46-43)27-19-21-31-30-13-3-6-18-38(30)49-39(31)24-27/h4*1-24H
InChIKeyUSIDZJQFTHDEPZ-UHFFFAOYSA-N
XLogP48.31
TPSA220.20 Ų
H-Bond Donors
H-Bond Acceptors24
Rotatable Bonds12
Heavy Atoms196
Complexity

Lipinski Rule of Five

3 violations

RuleValue
MW ≤ 5002579.04
LogP ≤ 548.31
H-Bond Donors ≤ 50
H-Bond Acceptors ≤ 1024

Analyze 8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene 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

Frequently Asked Questions

What is the IUPAC name of 8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene?
The IUPAC name of 8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene (CID 161180056) is 8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene.
What is the SMILES notation for 8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene?
The canonical SMILES for 8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene is c1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3c(c2)oc2ccccc23)nc(-c2cccc3c2sc2ccccc23)n1.c1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3c(c2)sc2ccccc23)nc(-c2ccc3oc4ccccc4c3c2)n1.c1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3sc4ccccc4c3c2)nc(-c2cccc3c2oc2ccccc23)n1.c1ccc2c(c1)-c1cccc3cccc(c13)N2c1nc(-c2ccc3sc4ccccc4c3c2)nc(-c2cccc3oc4ccccc4c23)n1.
What is the InChIKey of 8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene?
The InChIKey is USIDZJQFTHDEPZ-UHFFFAOYSA-N. The full InChI is InChI=1S/4C43H24N4OS/c1-4-17-33-27(12-1)29-15-7-10-25-11-8-18-34(39(25)29)47(33)43-45-41(26-22-23-38-32(24-26)28-13-3-6-21-37(28)49-38)44-42(46-43)31-16-9-20-36-40(31)30-14-2-5-19-35(30)48-36;1-4-18-34-27(12-1)31-15-7-10-25-11-8-19-35(39(25)31)47(34)43-45-41(26-22-23-29-28-13-2-5-20-36(28)48-37(29)24-26)44-42(46-43)33-17-9-16-32-30-14-3-6-21-38(30)49-40(32)33;1-4-18-34-27(12-1)30-15-7-10-25-11-8-19-35(39(25)30)47(34)43-45-41(26-22-23-38-33(24-26)29-14-3-6-21-37(29)49-38)44-42(46-43)32-17-9-16-31-28-13-2-5-20-36(28)48-40(31)32;1-4-15-34-28(11-1)32-14-7-9-25-10-8-16-35(40(25)32)47(34)43-45-41(26-20-22-37-33(23-26)29-12-2-5-17-36(29)48-37)44-42(46-43)27-19-21-31-30-13-3-6-18-38(30)49-39(31)24-27/h4*1-24H.
What are the key properties of 8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene?
8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene has a molecular weight of 2579.04 g/mol, XLogP of 48.31, 12 rotatable bonds, 0 hydrogen bond donors, and 24 hydrogen bond acceptors.
Where does this data come from?
All data for 8-(4-dibenzofuran-1-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-2-yl-6-dibenzothiophen-3-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-3-yl-6-dibenzothiophen-4-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene;8-(4-dibenzofuran-4-yl-6-dibenzothiophen-2-yl-1,3,5-triazin-2-yl)-8-azatetracyclo[7.7.1.02,7.013,17]heptadeca-1(16),2,4,6,9,11,13(17),14-octaene is sourced from PubChem (CID 161180056), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).