Ribavirin Impurity 43 CAS 645-15-8
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 645-15-8 |
| Molecular Formula | C12H9N2O8P |
| Molecular Weight | 340.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ribavirin Impurity 43 (CAS 645-15-8) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C12H9N2O8P. Molecular weight: 340.18 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C12H9N2O8P |
| Molecular Weight | 340.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Ribavirin Standards
- Ribavirin Impurity 30-d6 (CAS 175733-29-6)
- Ribavirin Impurity E (CAS 58151-90-9)
- Ribavirin Impurity 42 (CAS 799-87-1)
- Ribavirin Monophosphate (CAS 40925-28-8)
- Ribavirin Impurity 50 (CAS 13035-61-5)
- Ribavirin Impurity 58 (CAS 659722-55-1)
- Ribavirin Impurity 41 (CAS 905-14-6)
- Ribavirin Triacetate (CAS 40372-03-0)
Recommended Standards
- N-(4-(2,4-Dichlorophenyl)thiazol-2-yl)isoxazole-5-carboxamide (CAS 941993-87-9)
- 3-[2-(4-bromophenyl)acetamido]thiophene-2-carboxylic acid (CAS 1016828-19-5)
- 6-Oxo-N-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]-1H-pyridine-2-carboxamide (CAS 2246700-02-5)
- Afatinib Impurity 36 (CAS CATO-C4X-100636)
- Sarpogrelate Impurity 7 (CAS CATO-C4X-29137)
- methyl 6-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate (CAS 2102176-11-2)
- 2-(2-(Difluoromethoxy)-5-fluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1417301-27-9)
- 4-(2-Cyclopropyl-1h-imidazol-1-yl)benzoic acid (CAS 1781870-75-4)
- Aprepitant Impurity 25 (CAS CATO-C4X-114125)
- Semaglutide Impurity 151 xTFA (CAS CATO-C4X-2226151)
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