4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene

C223H133N27O4S2 — CID 157203144

About 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene

4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene (PubChem CID 157203144) has the molecular formula C223H133N27O4S2 and a molecular weight of 3318.84 g/mol. Its IUPAC name is 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene.

Molecular Properties

• Compound Name: 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene
• PubChem CID: 157203144
• Molecular Formula: C223H133N27O4S2
• Molecular Weight: 3318.84 g/mol
• Exact Mass: 3316.05
• IUPAC Name: 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene
• SMILES: c1ccc(-n2c3cc(-c4ccc5oc6ccc(-c7ccc8c9cccnc9n(-c9ccccc9)c8c7)nc6c5n4)ccc3c3cccnc32)cc1.c1ccc(-n2c3cc(-c4ccc5oc6ccc(-c7ccc8c9cccnc9n(-c9ccccc9)c8c7)nc6c5n4)ccc3c3ncccc32)cc1.c1ccc(-n2c3ccccc3c3ccc(-c4ccc5oc6ccc(-c7ccc8c9cccnc9n(-c9ccccc9)c8c7)nc6c5n4)cc32)cc1.c1ccc(-n2c3ccncc3c3ccc(-c4ccc5sc6ccc(-c7ccc8c9cccnc9n(-c9ccccc9)c8c7)nc6c5n4)cc32)cc1.c1ccc(N2c3ccccc3Oc3cccc(-c4ccc5sc6ccc(-c7ccc8c9ccccc9n(-c9ccccc9)c8c7)nc6c5n4)c32)cc1
• InChI: InChI=1S/C46H28N4OS.C45H27N5O.2C44H26N6O.C44H26N6S/c1-3-12-30(13-4-1)49-37-18-8-7-16-32(37)33-23-22-29(28-39(33)49)35-24-26-42-44(47-35)45-43(52-42)27-25-36(48-45)34-17-11-21-41-46(34)50(31-14-5-2-6-15-31)38-19-9-10-20-40(38)51-41;1-3-10-30(11-4-1)49-38-16-8-7-14-32(38)33-19-17-28(26-39(33)49)36-21-23-41-43(47-36)44-42(51-41)24-22-37(48-44)29-18-20-34-35-15-9-25-46-45(35)50(40(34)27-29)31-12-5-2-6-13-31;1-3-9-29(10-4-1)49-36-14-8-23-45-41(36)33-18-16-28(26-38(33)49)35-20-22-40-43(48-35)42-39(51-40)21-19-34(47-42)27-15-17-31-32-13-7-24-46-44(32)50(37(31)25-27)30-11-5-2-6-12-30;1-3-9-29(10-4-1)49-37-25-27(15-17-31(37)33-13-7-23-45-43(33)49)35-19-21-39-41(47-35)42-40(51-39)22-20-36(48-42)28-16-18-32-34-14-8-24-46-44(34)50(38(32)26-28)30-11-5-2-6-12-30;1-3-8-29(9-4-1)49-37-21-23-45-26-34(37)32-16-14-27(24-38(32)49)35-17-19-40-42(47-35)43-41(51-40)20-18-36(48-43)28-13-15-31-33-12-7-22-46-44(33)50(39(31)25-28)30-10-5-2-6-11-30/h1-28H;1-27H;3*1-26H
• InChIKey: ARANOUAUQHOCDQ-UHFFFAOYSA-N
• XLogP: 56.70
• TPSA: 315.39 Ų
• H-Bond Acceptors: 33
• Rotatable Bonds: 20
• Heavy Atoms: 256
• Complexity: —

Lipinski Rule of Five

3 violations

Rule	Value
MW ≤ 500	3318.84
LogP ≤ 5	56.70
H-Bond Donors ≤ 5	0
H-Bond Acceptors ≤ 10	33

Frequently Asked Questions

What is the IUPAC name of 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene?

The IUPAC name of 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene (CID 157203144) is 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene.

What is the SMILES notation for 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene?

The canonical SMILES for 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene is c1ccc(-n2c3cc(-c4ccc5oc6ccc(-c7ccc8c9cccnc9n(-c9ccccc9)c8c7)nc6c5n4)ccc3c3cccnc32)cc1.c1ccc(-n2c3cc(-c4ccc5oc6ccc(-c7ccc8c9cccnc9n(-c9ccccc9)c8c7)nc6c5n4)ccc3c3ncccc32)cc1.c1ccc(-n2c3ccccc3c3ccc(-c4ccc5oc6ccc(-c7ccc8c9cccnc9n(-c9ccccc9)c8c7)nc6c5n4)cc32)cc1.c1ccc(-n2c3ccncc3c3ccc(-c4ccc5sc6ccc(-c7ccc8c9cccnc9n(-c9ccccc9)c8c7)nc6c5n4)cc32)cc1.c1ccc(N2c3ccccc3Oc3cccc(-c4ccc5sc6ccc(-c7ccc8c9ccccc9n(-c9ccccc9)c8c7)nc6c5n4)c32)cc1.

What is the InChIKey of 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene?

The InChIKey is ARANOUAUQHOCDQ-UHFFFAOYSA-N. The full InChI is InChI=1S/C46H28N4OS.C45H27N5O.2C44H26N6O.C44H26N6S/c1-3-12-30(13-4-1)49-37-18-8-7-16-32(37)33-23-22-29(28-39(33)49)35-24-26-42-44(47-35)45-43(52-42)27-25-36(48-45)34-17-11-21-41-46(34)50(31-14-5-2-6-15-31)38-19-9-10-20-40(38)51-41;1-3-10-30(11-4-1)49-38-16-8-7-14-32(38)33-19-17-28(26-39(33)49)36-21-23-41-43(47-36)44-42(51-41)24-22-37(48-44)29-18-20-34-35-15-9-25-46-45(35)50(40(34)27-29)31-12-5-2-6-13-31;1-3-9-29(10-4-1)49-36-14-8-23-45-41(36)33-18-16-28(26-38(33)49)35-20-22-40-43(48-35)42-39(51-40)21-19-34(47-42)27-15-17-31-32-13-7-24-46-44(32)50(37(31)25-27)30-11-5-2-6-12-30;1-3-9-29(10-4-1)49-37-25-27(15-17-31(37)33-13-7-23-45-43(33)49)35-19-21-39-41(47-35)42-40(51-39)22-20-36(48-42)28-16-18-32-34-14-8-24-46-44(34)50(38(32)26-28)30-11-5-2-6-12-30;1-3-8-29(9-4-1)49-37-21-23-45-26-34(37)32-16-14-27(24-38(32)49)35-17-19-40-42(47-35)43-41(51-40)20-18-36(48-43)28-13-15-31-33-12-7-22-46-44(33)50(39(31)25-28)30-10-5-2-6-11-30/h1-28H;1-27H;3*1-26H.

What are the key properties of 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene?

4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene has a molecular weight of 3318.84 g/mol, XLogP of 56.70, 20 rotatable bonds, 0 hydrogen bond donors, and 33 hydrogen bond acceptors.

Where does this data come from?

All data for 4,12-bis(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(9-phenylcarbazol-2-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;10-phenyl-1-[12-(9-phenylcarbazol-2-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaen-4-yl]phenoxazine;4-(5-phenylpyrido[3,2-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-oxa-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene;4-(5-phenylpyrido[4,3-b]indol-7-yl)-12-(9-phenylpyrido[2,3-b]indol-7-yl)-8-thia-3,13-diazatricyclo[7.4.0.02,7]trideca-1(9),2(7),3,5,10,12-hexaene is sourced from PubChem (CID 157203144), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).