Oxonic Acid Impurity 2 CAS 71-33-0
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 71-33-0 |
| Molecular Formula | C3H3N3O2 |
| Molecular Weight | 113.07 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Oxonic Acid Impurity 2 (CAS 71-33-0) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C3H3N3O2. Molecular weight: 113.07 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C3H3N3O2 |
| Molecular Weight | 113.07 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
Related Oxonic Standards
Recommended Standards
- Ribavirin Impurity 40 (CAS 39215-01-5)
- Ribavirin EP Impurity C (CAS 4928-87-4)
- 2-Nitroimidazole (CAS 527-73-1)
- Azelastine Impurity 67 (CAS CATO-C4X-139667)
- Arbidol Impurity 42 (CAS 153633-14-8)
- 4-(Methylthio)pyrimidin-2-ol (CAS 129618-62-8)
- N-ALlyl-2-(phenylacetyl)hydrazinecarbothioamide (CAS 15814-11-6)
- Methyl 4-isobutyl-2-methyl-1H-imidazole-5-carboxylate (CAS 1150617-77-8)
- 2-Methoxy-N-(5-oxo-2,3,4,5-tetrahydrobenzo[f][1,4]oxazepin-7-yl)benzamide (CAS 922130-11-8)
- Semaglutide impurity 205 (CAS CATO-C4X-2226205)
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