| 1 | 1082-07-1 | 7-(2-carboxyethyl)guanine | 7-(2-carboxyethyl)guanine | C8H9N5O3
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| 2 | | 9-(1,3-dioxolan-4-yl)guanine | 9-(1,3-dioxolan-4-yl)guanine | C8H9N5O3
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| 3 | 5637-41-2 | 1-(4-Cyanophenyl)guanidine nitrate | 1-(4-Cyanophenyl)guanidine nitrate | C8H9N5O3
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| 4 | | 1-Benzyl-3-nitro-1-nitrosoguanidine | 1-Benzyl-3-nitro-1-nitrosoguanidine | C8H9N5O3
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| 5 | 84628-22-8 | 3-(2-amino-6-oxo-3H-purin-9-yl)propanoic acid | 3-(2-amino-6-oxo-3H-purin-9-yl)propanoic acid | C8H9N5O3
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| 6 | | 2-(9H-PURIN-6-YLAMINO)-3-HYDROXYPROPANOIC ACID | 2-(9H-PURIN-6-YLAMINO)-3-HYDROXYPROPANOIC ACID | C8H9N5O3
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| 7 | | 1-[(3-Nitrophenyl)methyleneamino]-3-hydroxyguanidine | 1-[(3-Nitrophenyl)methyleneamino]-3-hydroxyguanidine | C8H9N5O3
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| 8 | 774156-67-1 | Alanine, N-(6,7-dihydro-6-oxo-1H-purin-2-yl)- (9CI) | Alanine, N-(6,7-dihydro-6-oxo-1H-purin-2-yl)- (9CI) | C8H9N5O3
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| 9 | 10187-89-0 | N-Ethyl-5-(5-nitrofuran-2-yl)-1H-1,2,4-triazol-3-amine | N-Ethyl-5-(5-nitrofuran-2-yl)-1H-1,2,4-triazol-3-amine | C8H9N5O3
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| 10 | 214285-37-7 | Glycine, N-(6,9-dihydro-9-methyl-6-oxo-1H-purin-2-yl)- | Glycine, N-(6,9-dihydro-9-methyl-6-oxo-1H-purin-2-yl)- | C8H9N5O3
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| 11 | 190324-44-8 | 1,2-Ethanediamine, N1-(7-nitro-2,1,3-benzoxadiazol-4-yl)- | 1,2-Ethanediamine, N1-(7-nitro-2,1,3-benzoxadiazol-4-yl)- | C8H9N5O3
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| 12 | 20041-66-1 | 2-Amino-6-hydroxymethyl-8-methyl-4,7(1H,8H)-pteridinedione | 2-Amino-6-hydroxymethyl-8-methyl-4,7(1H,8H)-pteridinedione | C8H9N5O3
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| 13 | 500282-63-3 | 4,7(1H,8H)-Pteridinedione, 2-amino-6-(methoxymethyl)- (9CI) | 4,7(1H,8H)-Pteridinedione, 2-amino-6-(methoxymethyl)- (9CI) | C8H9N5O3
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| 14 | 50787-03-6 | 2,4,6(3H)-Pteridinetrione, 7-amino-1,5-dihydro-1,3-dimethyl- | 2,4,6(3H)-Pteridinetrione, 7-amino-1,5-dihydro-1,3-dimethyl- | C8H9N5O3
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| 15 | | 4-[3-(4H-1,2,4-triazol-3-yl)-1,2,4-oxadiazol-5-yl]butanoic acid | 4-[3-(4H-1,2,4-triazol-3-yl)-1,2,4-oxadiazol-5-yl]butanoic acid | C8H9N5O3
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| 16 | 63954-50-7 | 6-Pteridinecarboxylicacid, 2-amino-3,4,7,8-tetrahydro-8-methyl-4-oxo- | 6-Pteridinecarboxylicacid, 2-amino-3,4,7,8-tetrahydro-8-methyl-4-oxo- | C8H9N5O3
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| 17 | 52212-83-6 | | Acetic acid, 1,2,6,9-tetrahydro-2-imino-1-methyl-6-oxo-3H-purin-3-yl ester | C8H9N5O3
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| 18 | 22712-32-9 | 抗生素 MSD-92 | 3,8,10-trimethyl-2,3,5,8,10-pentazabicyclo[4.4.0]deca-1,5-diene-4,7,9-trione | C8H9N5O3
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| 19 | 171813-05-1 | 9H-Imidazo[1,2-a]purin-9-one, 1,4,6,7-tetrahydro-6,7-dihydroxy-6-methyl- (9CI) | 9H-Imidazo[1,2-a]purin-9-one, 1,4,6,7-tetrahydro-6,7-dihydroxy-6-methyl- (9CI) | C8H9N5O3
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| 20 | 1247510-14-0 | 5-甲基-1-[(5-甲基-1,2,4-噁二唑-3-基)甲基]-1H-1,2,3-三唑-4-羧酸 | 5-methyl-1-[(5-methyl-1,2,4-oxadiazol-3-yl)methyl]-1H-1,2,3-triazole-4-carboxylic acid | C8H9N5O3
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