Favipiravir Impurity 18 CAS 259793-97-0
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 259793-97-0 |
| Molecular Formula | C5H4N4O4 |
| Molecular Weight | 184.11 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Favipiravir Impurity 18 (CAS 259793-97-0) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C5H4N4O4. Molecular weight: 184.11 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C5H4N4O4 |
| Molecular Weight | 184.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
Related Favipiravir Standards
- Favipiravir Impurity 13 (CAS CATO-C4X-210213)
- Favipiravir Impurity 16 (CAS 1023813-21-9)
- Favipiravir Impurity 5 (CAS 356783-16-9)
- Favipiravir Impurity 2 (CAS 259793-90-3)
- Favipiravir Impurity 1 (CAS CATO-C4X-21021)
- Favipiravir Impurity 23 (CAS 2091074-00-7)
- Favipiravir Impurity 23 (CAS 356783-14-7)
- Favipiravir-13C3 (CAS CATO-C4X-210210)
Recommended Standards
- Acipimox Impurity 18 (CAS CATO-C4X-186618)
- 2,4-Dinitrophenol (CAS 51-28-5)
- 2VC6P60SLN 7789-48-2 Magnesium bromide Magnesium bromide (MgBr2) EINECS 232-170-9 UNII-2VC6P60SLN (CAS 7789-48-2)
- Vancomycin EP Impurity A (CAS 91700-98-0(Free Base))
- Eperisone Impurity 28 (CAS CATO-C4X-227928)
- 2-({[(9h-fluoren-9-yl)methoxy]carbonyl}amino)-5-iodobenzoic acid (CAS 924817-95-8)
- Ethyl 6-(difluoromethoxy)-4-methylnicotinate (CAS 1079352-16-1)
- 3-Isoxazolecarboxylicacid, 5-(4-bromophenyl)-, ethyl ester 33277-15-5 CTK4H0310 (CAS 33277-15-5)
- 4-Hydrazinyl-7-methylquinoline hydrochloride (CAS 68500-38-9)
- TRAF6 Control Peptide trifluoroacetate salt (CAS 852690-80-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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