2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine

C310H191N17O10S — CID 163652899

About 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine

2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine (PubChem CID 163652899) has the molecular formula C310H191N17O10S and a molecular weight of 4346.11 g/mol. Its IUPAC name is 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine.

Molecular Properties

• Compound Name: 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine
• PubChem CID: 163652899
• Molecular Formula: C310H191N17O10S
• Molecular Weight: 4346.11 g/mol
• Exact Mass: 4342.47
• IUPAC Name: 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine
• SMILES: c1ccc(-c2ccc(-c3cccc(-c4cccc(-c5nc(-c6ccc(-c7cccc8c7oc7ccccc78)cc6)c6oc7ccccc7c6n5)c4)c3)cc2)cc1.c1ccc(-c2ccc(-c3cccc(-c4cccc(-c5nc(-c6cccc7c6oc6ccccc67)c6oc7ccccc7c6n5)c4)c3)cc2)cc1.c1ccc(-c2ccc3c(c2)c2ccccc2n3-c2cccc(-c3cccc(-c4nc(-c5ccccc5)c5oc6ccccc6c5n4)c3)c2)cc1.c1ccc(-c2nc(-c3cccc(-c4cccc(-c5ccc6c(c5)c5ccccc5n6-c5ccccc5)c4)c3)c3oc4ccccc4c3n2)cc1.c1ccc(-c2nc(-c3cccc(-c4cccc(-c5cccc6c5oc5ccccc56)c4)c3)nc3c2oc2ccccc23)cc1.c1ccc(-c2nc(-c3cccc(-c4cccc(-c5cccc6c5sc5ccccc56)c4)c3)nc3c2oc2ccccc23)cc1.c1ccc(-c2nc(-c3cccc(-c4cccc(-n5c6ccccc6c6ccccc65)c4)c3)nc3c2oc2ccccc23)cc1
• InChI: InChI=1S/C52H32N2O2.2C46H29N3O.C46H28N2O2.C40H25N3O.C40H24N2O2.C40H24N2OS/c1-2-11-33(12-3-1)34-23-25-35(26-24-34)38-13-8-14-39(31-38)40-15-9-16-41(32-40)52-53-48(51-49(54-52)45-18-5-7-22-47(45)56-51)37-29-27-36(28-30-37)42-19-10-20-44-43-17-4-6-21-46(43)55-50(42)44;1-3-13-30(14-4-1)46-47-43(45-44(48-46)38-22-8-10-24-42(38)50-45)35-18-12-17-33(28-35)31-15-11-16-32(27-31)34-25-26-41-39(29-34)37-21-7-9-23-40(37)49(41)36-19-5-2-6-20-36;1-3-13-30(14-4-1)34-25-26-41-39(29-34)37-21-7-9-23-40(37)49(41)36-20-12-18-33(28-36)32-17-11-19-35(27-32)46-47-43(31-15-5-2-6-16-31)45-44(48-46)38-22-8-10-24-42(38)50-45;1-2-11-29(12-3-1)30-23-25-31(26-24-30)32-13-8-14-33(27-32)34-15-9-16-35(28-34)46-47-42-38-18-5-7-22-41(38)50-45(42)43(48-46)39-20-10-19-37-36-17-4-6-21-40(36)49-44(37)39;1-2-12-26(13-3-1)37-39-38(33-20-6-9-23-36(33)44-39)42-40(41-37)29-16-10-14-27(24-29)28-15-11-17-30(25-28)43-34-21-7-4-18-31(34)32-19-5-8-22-35(32)43;1-2-11-25(12-3-1)36-39-37(33-18-5-7-22-35(33)44-39)42-40(41-36)29-16-9-14-27(24-29)26-13-8-15-28(23-26)30-19-10-20-32-31-17-4-6-21-34(31)43-38(30)32;1-2-11-25(12-3-1)36-38-37(33-18-4-6-21-34(33)43-38)42-40(41-36)29-16-9-14-27(24-29)26-13-8-15-28(23-26)30-19-10-20-32-31-17-5-7-22-35(31)44-39(30)32/h1-32H;2*1-29H;1-28H;1-25H;2*1-24H
• InChIKey: INTGVNPVNVLXQP-UHFFFAOYSA-N
• XLogP: 84.00
• TPSA: 326.65 Ų
• H-Bond Acceptors: 28
• Rotatable Bonds: 33
• Heavy Atoms: 338
• Complexity: —

Lipinski Rule of Five

3 violations

Rule	Value
MW ≤ 500	4346.11
LogP ≤ 5	84.00
H-Bond Donors ≤ 5	0
H-Bond Acceptors ≤ 10	28

Frequently Asked Questions

What is the IUPAC name of 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine?

The IUPAC name of 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine (CID 163652899) is 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine.

What is the SMILES notation for 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine?

The canonical SMILES for 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine is c1ccc(-c2ccc(-c3cccc(-c4cccc(-c5nc(-c6ccc(-c7cccc8c7oc7ccccc78)cc6)c6oc7ccccc7c6n5)c4)c3)cc2)cc1.c1ccc(-c2ccc(-c3cccc(-c4cccc(-c5nc(-c6cccc7c6oc6ccccc67)c6oc7ccccc7c6n5)c4)c3)cc2)cc1.c1ccc(-c2ccc3c(c2)c2ccccc2n3-c2cccc(-c3cccc(-c4nc(-c5ccccc5)c5oc6ccccc6c5n4)c3)c2)cc1.c1ccc(-c2nc(-c3cccc(-c4cccc(-c5ccc6c(c5)c5ccccc5n6-c5ccccc5)c4)c3)c3oc4ccccc4c3n2)cc1.c1ccc(-c2nc(-c3cccc(-c4cccc(-c5cccc6c5oc5ccccc56)c4)c3)nc3c2oc2ccccc23)cc1.c1ccc(-c2nc(-c3cccc(-c4cccc(-c5cccc6c5sc5ccccc56)c4)c3)nc3c2oc2ccccc23)cc1.c1ccc(-c2nc(-c3cccc(-c4cccc(-n5c6ccccc6c6ccccc65)c4)c3)nc3c2oc2ccccc23)cc1.

What is the InChIKey of 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine?

The InChIKey is INTGVNPVNVLXQP-UHFFFAOYSA-N. The full InChI is InChI=1S/C52H32N2O2.2C46H29N3O.C46H28N2O2.C40H25N3O.C40H24N2O2.C40H24N2OS/c1-2-11-33(12-3-1)34-23-25-35(26-24-34)38-13-8-14-39(31-38)40-15-9-16-41(32-40)52-53-48(51-49(54-52)45-18-5-7-22-47(45)56-51)37-29-27-36(28-30-37)42-19-10-20-44-43-17-4-6-21-46(43)55-50(42)44;1-3-13-30(14-4-1)46-47-43(45-44(48-46)38-22-8-10-24-42(38)50-45)35-18-12-17-33(28-35)31-15-11-16-32(27-31)34-25-26-41-39(29-34)37-21-7-9-23-40(37)49(41)36-19-5-2-6-20-36;1-3-13-30(14-4-1)34-25-26-41-39(29-34)37-21-7-9-23-40(37)49(41)36-20-12-18-33(28-36)32-17-11-19-35(27-32)46-47-43(31-15-5-2-6-16-31)45-44(48-46)38-22-8-10-24-42(38)50-45;1-2-11-29(12-3-1)30-23-25-31(26-24-30)32-13-8-14-33(27-32)34-15-9-16-35(28-34)46-47-42-38-18-5-7-22-41(38)50-45(42)43(48-46)39-20-10-19-37-36-17-4-6-21-40(36)49-44(37)39;1-2-12-26(13-3-1)37-39-38(33-20-6-9-23-36(33)44-39)42-40(41-37)29-16-10-14-27(24-29)28-15-11-17-30(25-28)43-34-21-7-4-18-31(34)32-19-5-8-22-35(32)43;1-2-11-25(12-3-1)36-39-37(33-18-5-7-22-35(33)44-39)42-40(41-36)29-16-9-14-27(24-29)26-13-8-15-28(23-26)30-19-10-20-32-31-17-4-6-21-34(31)43-38(30)32;1-2-11-25(12-3-1)36-38-37(33-18-4-6-21-34(33)43-38)42-40(41-36)29-16-9-14-27(24-29)26-13-8-15-28(23-26)30-19-10-20-32-31-17-5-7-22-35(31)44-39(30)32/h1-32H;2*1-29H;1-28H;1-25H;2*1-24H.

What are the key properties of 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine?

2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine has a molecular weight of 4346.11 g/mol, XLogP of 84.00, 33 rotatable bonds, 0 hydrogen bond donors, and 28 hydrogen bond acceptors.

Where does this data come from?

All data for 2-[3-(3-carbazol-9-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzofuran-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;4-dibenzofuran-4-yl-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-(4-dibenzofuran-4-ylphenyl)-2-[3-[3-(4-phenylphenyl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;2-[3-(3-dibenzothiophen-4-ylphenyl)phenyl]-4-phenyl-[1]benzofuro[3,2-d]pyrimidine;2-phenyl-4-[3-[3-(9-phenylcarbazol-3-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine;4-phenyl-2-[3-[3-(3-phenylcarbazol-9-yl)phenyl]phenyl]-[1]benzofuro[3,2-d]pyrimidine is sourced from PubChem (CID 163652899), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).