benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride

C131H134Cl6N32O14 — CID 158006337

About benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride

benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride (PubChem CID 158006337) has the molecular formula C131H134Cl6N32O14 and a molecular weight of 2593.44 g/mol. Its IUPAC name is benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride.

Molecular Properties

• Compound Name: benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride
• PubChem CID: 158006337
• Molecular Formula: C131H134Cl6N32O14
• Molecular Weight: 2593.44 g/mol
• Exact Mass: 2588.89
• IUPAC Name: benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride
• SMILES: CCOC(=O)C(C)(C)Cc1cc(C2CC2)cn2cc(Cn3cc(C(=O)NCc4ncn5ccc(Cl)cc45)cn3)nc12.CCOC(=O)C(C)C.Cl.NCc1ncn2ccc(Cl)cc12.O=C(NCc1ncn2ccc(Cl)cc12)c1cnn(Cc2cn3cc(C4CC4)cc(CCl)c3n2)c1.O=C(NCc1ncn2ccc(Cl)cc12)c1cnn(Cc2cn3cc(C4CC4)cc(CO)c3n2)c1.O=C(O)c1cnn(Cc2cn3cc(C4CC4)cc(CO)c3n2)c1.O=C(OCc1ccccc1)c1cnn(Cc2cn3cc(C4CC4)cc(CO)c3n2)c1
• InChI: InChI=1S/C30H32ClN7O3.C24H21Cl2N7O.C24H22ClN7O2.C23H22N4O3.C16H16N4O3.C8H8ClN3.C6H12O2.ClH/c1-4-41-29(40)30(2,3)11-20-9-21(19-5-6-19)14-37-16-24(35-27(20)37)17-38-15-22(12-34-38)28(39)32-13-25-26-10-23(31)7-8-36(26)18-33-25;25-7-16-5-17(15-1-2-15)10-32-12-20(30-23(16)32)13-33-11-18(8-29-33)24(34)27-9-21-22-6-19(26)3-4-31(22)14-28-21;25-19-3-4-30-14-27-21(22(30)6-19)8-26-24(34)18-7-28-32(10-18)12-20-11-31-9-16(15-1-2-15)5-17(13-33)23(31)29-20;28-14-19-8-18(17-6-7-17)10-26-12-21(25-22(19)26)13-27-11-20(9-24-27)23(29)30-15-16-4-2-1-3-5-16;21-9-12-3-11(10-1-2-10)5-19-7-14(18-15(12)19)8-20-6-13(4-17-20)16(22)23;9-6-1-2-12-5-11-7(4-10)8(12)3-6;1-4-8-6(7)5(2)3;/h7-10,12,14-16,18-19H,4-6,11,13,17H2,1-3H3,(H,32,39);3-6,8,10-12,14-15H,1-2,7,9,13H2,(H,27,34);3-7,9-11,14-15,33H,1-2,8,12-13H2,(H,26,34);1-5,8-12,17,28H,6-7,13-15H2;3-7,10,21H,1-2,8-9H2,(H,22,23);1-3,5H,4,10H2;5H,4H2,1-3H3;1H
• InChIKey: GEFHTRJHXVESCD-UHFFFAOYSA-N
• XLogP: 20.45
• TPSA: 535.01 Ų
• H-Bond Donors: 8
• H-Bond Acceptors: 42
• Rotatable Bonds: 39
• Heavy Atoms: 183
• Complexity: —

Lipinski Rule of Five

4 violations

Rule	Value
MW ≤ 500	2593.44
LogP ≤ 5	20.45
H-Bond Donors ≤ 5	8
H-Bond Acceptors ≤ 10	42

Computed Properties (RDKit)

• Structural Alerts: {'alert_name': '>_2_ester_groups', 'substructure': 'N/A'}, {'alert_name': 'alkyl_halide', 'substructure': 'N/A'}

Frequently Asked Questions

What is the IUPAC name of benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride?

The IUPAC name of benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride (CID 158006337) is benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride.

What is the SMILES notation for benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride?

The canonical SMILES for benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride is CCOC(=O)C(C)(C)Cc1cc(C2CC2)cn2cc(Cn3cc(C(=O)NCc4ncn5ccc(Cl)cc45)cn3)nc12.CCOC(=O)C(C)C.Cl.NCc1ncn2ccc(Cl)cc12.O=C(NCc1ncn2ccc(Cl)cc12)c1cnn(Cc2cn3cc(C4CC4)cc(CCl)c3n2)c1.O=C(NCc1ncn2ccc(Cl)cc12)c1cnn(Cc2cn3cc(C4CC4)cc(CO)c3n2)c1.O=C(O)c1cnn(Cc2cn3cc(C4CC4)cc(CO)c3n2)c1.O=C(OCc1ccccc1)c1cnn(Cc2cn3cc(C4CC4)cc(CO)c3n2)c1.

What is the InChIKey of benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride?

The InChIKey is GEFHTRJHXVESCD-UHFFFAOYSA-N. The full InChI is InChI=1S/C30H32ClN7O3.C24H21Cl2N7O.C24H22ClN7O2.C23H22N4O3.C16H16N4O3.C8H8ClN3.C6H12O2.ClH/c1-4-41-29(40)30(2,3)11-20-9-21(19-5-6-19)14-37-16-24(35-27(20)37)17-38-15-22(12-34-38)28(39)32-13-25-26-10-23(31)7-8-36(26)18-33-25;25-7-16-5-17(15-1-2-15)10-32-12-20(30-23(16)32)13-33-11-18(8-29-33)24(34)27-9-21-22-6-19(26)3-4-31(22)14-28-21;25-19-3-4-30-14-27-21(22(30)6-19)8-26-24(34)18-7-28-32(10-18)12-20-11-31-9-16(15-1-2-15)5-17(13-33)23(31)29-20;28-14-19-8-18(17-6-7-17)10-26-12-21(25-22(19)26)13-27-11-20(9-24-27)23(29)30-15-16-4-2-1-3-5-16;21-9-12-3-11(10-1-2-10)5-19-7-14(18-15(12)19)8-20-6-13(4-17-20)16(22)23;9-6-1-2-12-5-11-7(4-10)8(12)3-6;1-4-8-6(7)5(2)3;/h7-10,12,14-16,18-19H,4-6,11,13,17H2,1-3H3,(H,32,39);3-6,8,10-12,14-15H,1-2,7,9,13H2,(H,27,34);3-7,9-11,14-15,33H,1-2,8,12-13H2,(H,26,34);1-5,8-12,17,28H,6-7,13-15H2;3-7,10,21H,1-2,8-9H2,(H,22,23);1-3,5H,4,10H2;5H,4H2,1-3H3;1H.

What are the key properties of benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride?

benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride has a molecular weight of 2593.44 g/mol, XLogP of 20.45, 39 rotatable bonds, 8 hydrogen bond donors, and 42 hydrogen bond acceptors.

Where does this data come from?

All data for benzyl 1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylate;(7-chloroimidazo[1,5-a]pyridin-1-yl)methanamine;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[8-(chloromethyl)-6-cyclopropylimidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;N-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methyl]-1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxamide;1-[[6-cyclopropyl-8-(hydroxymethyl)imidazo[1,2-a]pyridin-2-yl]methyl]pyrazole-4-carboxylic acid;ethyl 3-[2-[[4-[(7-chloroimidazo[1,5-a]pyridin-1-yl)methylcarbamoyl]pyrazol-1-yl]methyl]-6-cyclopropylimidazo[1,2-a]pyridin-8-yl]-2,2-dimethylpropanoate;ethyl 2-methylpropanoate;hydrochloride is sourced from PubChem (CID 158006337), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).