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| No. | CAS No. | Product Name | Molecular Formula |
| H-058341 | 1334547-12-4 | ethyl 3-amino-5,6-bis(trifluoromethyl)pyrazine-2-carboxylate | |
| H-058335 | 1334547-03-3 | 3-amino-6-bromo-5-trifluoromethyl-pyrazine-2-carboxylic acid | |
| H-044707 | 685117-25-3 | 3-((3,4-dimethoxyphenyl)carbamoyl)pyrazine-2-carboxylic acid | C14H13N3O5 |
| H-041714 | 951627-01-3 | ethyl 5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine-1-carboxylate | C9H13N3O2 |
| H-031724 | 889451-27-8 | 7-iodo-5-(4-methylbenzenesulfonyl)-5H-pyrrolo[2,3-b]pyrazine | C13H10In3O2S |
| H-029253 | 1449598-75-7 | ethyl 4-chloro-6-methylpyrazolo[1,5-a]pyrazine-2-carboxylate | C10H10ClN3O2 |
| H-028968 | 1286753-85-2 | ethyl 5,6,7,8-tetrahydroimidazo(1,2-a)pyrazine-3-carboxylate | |
| H-022996 | 1338563-13-5 | ethyl 1-oxo-1H,2H,3H,4H-pyrrolo[1,2-a]pyrazine-7-carboxylate | C10H12N2O3 |
| H-015577 | 2873-36-1 | (3S,8aS)-3-Isobutylhexahydropyrrolo[1,2-a]pyrazine-1,4-dione | C11H18N2O2 |
| H-004620 | 126069-70-3 | 2-(Trifluoromethyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine | C7H8N3F3 |