| 1 | 70504-15-3 | 7-PHENYL-PTERIDIN-4-OL | 7-PHENYLPTERIDIN-4-OL | C12H8N4O
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| 2 | 81346-74-9 | 6-phenyl-4(3H)-pteridinone | 6-phenyl-4(3H)-pteridinone | C12H8N4O
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| 3 | 23120-10-7 | 2-Phenyl-4-hydroxypteridine | 2-Phenyl-4-hydroxypteridine | C12H8N4O
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| 4 | | 3-cyano-N-pyrimidin-2-ylbenzamide | 3-cyano-N-pyrimidin-2-ylbenzamide | C12H8N4O
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| 5 | 144223-31-4 | 1-(4-吡啶基羰基)苯并三唑 | 1-(4-PYRIDYLCARBONYL)BENZOTRIAZOLE | C12H8N4O
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| 6 | 15420-02-7 | 2,5-二(4-吡啶基)-1,3,4-噁二唑 | 2,5-BIS(4-PYRIDYL)-1,3,4-OXADIAZOLE | C12H8N4O
| 氮杂环;材料化学;其它中间体;杂质对照品 | |
| 7 | 153078-03-6 | 4-(5-pyrimidinyl)-1(2H)-Phthalazinone | 4-(5-pyrimidinyl)-1(2H)-Phthalazinone | C12H8N4O
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| 8 | 144223-29-0 | 1-(2-吡啶基羰基)苯并三唑 | 1-(2-PYRIDYLCARBONYL)BENZOTRIAZOLE 97 | C12H8N4O
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| 9 | 1537180-43-0 | 2-(嘧啶-5-基)喹唑啉-4-醇 | 4(3H)-Quinazolinone, 2-(5-pyrimidinyl)- | C12H8N4O
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| 10 | | 2-Phenyl-3-nitrosoimidazo[1,2-a]pyrimidine | 2-Phenyl-3-nitrosoimidazo[1,2-a]pyrimidine | C12H8N4O
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| 11 | | 2-PYRIDIN-2-YL-8H-PYRIDO[2,3-D]PYRIMIDIN-5-ONE | 2-PYRIDIN-2-YL-8H-PYRIDO[2,3-D]PYRIMIDIN-5-ONE | C12H8N4O
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| 12 | 154865-49-3 | 5-(2-pyridinyl)-Pyrido[2,3-d]pyridazin-8(7H)-one | 5-(2-pyridinyl)-Pyrido[2,3-d]pyridazin-8(7H)-one | C12H8N4O
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| 13 | 338411-83-9 | 2-(2-CYANO-1H-PYRROL-1-YL)-4-METHOXYNICOTINONITRILE | 2-(2-CYANO-1H-PYRROL-1-YL)-4-METHOXYNICOTINONITRILE | C12H8N4O
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| 14 | 1035818-92-8 | 3-Pyridin-2-yl-pyrazolo[1,5-a]pyrimidine-6-carbaldehyde | 3-Pyridin-2-yl-pyrazolo[1,5-a]pyrimidine-6-carbaldehyde | C12H8N4O
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| 15 | 188477-81-8 | 2-([(2-METHYL-1,3-BENZOXAZOL-6-YL)AMINO]METHYLENE)MALONONITRILE | 2-([(2-METHYL-1,3-BENZOXAZOL-6-YL)AMINO]METHYLENE)MALONONITRILE | C12H8N4O
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| 16 | 812675-69-7 | 1H-Pyrimido[5,4-b]indole-9-carbonitrile,4,5-dihydro-5-methyl-4-oxo-(9CI) | 1H-Pyrimido[5,4-b]indole-9-carbonitrile,4,5-dihydro-5-methyl-4-oxo-(9CI) | C12H8N4O
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