5H,6H-[1,2,4]triazolo[4,3-c]pyrimidin-5-one CAS 90993-88-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 90993-88-7 |
| Molecular Formula | C5H4N4O |
| Molecular Weight | 136.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5H,6H-[1,2,4]triazolo[4,3-c]pyrimidin-5-one (CAS 90993-88-7) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C5H4N4O. Molecular weight: 136.11 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C5H4N4O |
| Molecular Weight | 136.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 4 |
Recommended Standards
- 5-Amino-2-oxo-2,3-dihydropyrimidine-4-carbonitrile (CAS 371203-93-9)
- 6-Amino-2-hydroxypyrimidine-4-carbonitrile (CAS 548466-39-3)
- 5,5'-Bioxazole (CAS 72030-72-9)
- 4-Nitro-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazole-3-carbaldehyde (CAS 518990-08-4)
- 2-(2-Phenylbenzo[d]oxazol-4-yl)acetic acid (CAS 60723-67-3)
- N,N'-(2,2-dimethylpropane-1,3-diyl)bis(3-phenylpropanamide) (CAS 548443-08-9)
- Ibrutinib Impurity 174 (CAS CATO-C4X-1064174)
- Xanomeline impurity 42 (CAS CATO-C4X-330142)
- (2S,3aS,6aS)-2-benzyl 1-tert-butyl hexahydrocyclopenta[b]pyrrole-1,2(2H)-dicarboxylate (CAS 124002-38-6)
- Tirzepatide Impurity 20 (CAS CATO-C4X-324020)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com