3-羟基吡嗪-2-甲酰胺，CAS 登记号 55321-99-8，由济南圣和化工有限公司现货供应，可提供纯度 按批次COA提供(不公开发布) 的规格，下游主要用于有机化学品。支持样品与小批量试用，批量价格请联系我们获取，验收以批次 COA 为准。
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3-Hydroxypyrazine-2-carboxamide · CAS 55321-99-8 · C5H5N3O2. UNII 5R3A375F7A.
| CAS Registry Number | 55321-99-8 |
|---|---|
| PubChem CID | 294642 |
| Molecular formula | C5H5N3O2 |
| IUPAC name | 2-oxo-1H-pyrazine-3-carboxamide |
| UNII (FDA) | 5R3A375F7A |
| Molecular Weight | 139.11 |
|---|---|
| XLogP3 | -0.9 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 1 |
| Exact Mass | 139.038176411 |
| Monoisotopic Mass | 139.038176411 |
| Topological Polar Surface Area | 84.6 |
| Heavy Atom Count | 10 |
| Formal Charge | 0 |
| Reported hazard statements | H315 (100%), H319 (100%), H335 (85.7%) |
|---|
H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
3-Hydroxypyrazine-2-carboxamide; 55321-99-8; Pyrazinecarboxamide, 3,4-dihydro-3-oxo-; 3-Hydroxy-2-pyrazinecarboxamide; 3,4-Dihydro-3-oxo-2-pyrazinecarboxamide; 5R3A375F7A; NSC-163503; 2-Pyrazinecarboxamide, 3,4-dihydro-3-oxo-; NSC 163503; RefChem:483322; 676-589-9; T-1105; 2-oxo-1H-pyrazine-3-carboxamide; 3-Oxo-3,4-dihydropyrazine-2-carboxamide; MFCD00233977; Pyrazine-2-carboxamide, 3-hydroxy-
CAS 55321-99-8; molecular formula C5H5N3O2; molecular weight — g/mol.
3-Hydroxypyrazine-2-carboxamide, 55321-99-8, Pyrazinecarboxamide, 3,4-dihydro-3-oxo-, 3-Hydroxy-2-pyrazinecarboxamide, 3,4-Dihydro-3-oxo-2-pyrazinecarboxamide, 5R3A375F7A.
Hazard statements reported: H315, H319, H335.
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.