Ribavirin Impurity 51 CAS 4928-88-5
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 4928-88-5 |
| Molecular Formula | C4H5N3O2 |
| Molecular Weight | 127.10 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ribavirin Impurity 51 (CAS 4928-88-5) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C4H5N3O2. Molecular weight: 127.10 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C4H5N3O2 |
| Molecular Weight | 127.10 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.) | 1958 |
| Nitrogen Atoms | 3 |
Related Ribavirin Standards
- Ribavirin Impurity 52 (CAS 3641-13-2)
- Ribavirin EP Impurity C (CAS 4928-87-4)
- Ribavirin Impurity 40 (CAS 39215-01-5)
- Ribavirin EP Impurity D (CAS 3641-08-5)
- Ribavirin Impurity 26 (CAS 57281-13-7)
- Ribavirin Impurity V (CAS 89797-67-1)
- Ribavirin Impurity 48 (CAS 613-83-2)
- Ribavirin Impurity 37 (CAS CATO-C4X-141337)
Recommended Standards
- Metronidazole Impurity 24 (CAS 3034-42-2)
- Cefazolin Impurity 53 (CAS 26476-16-4)
- Metronidazole Impurity 11 (CAS 3034-41-1)
- Polmacoxib Impurity 4 Sodium Salt (CAS 1778703-67-5)
- Bendamustine Impurity 39 (CAS CATO-C4X-127139)
- 1-(3-Bromopyridin-4-yl)propan-1-one (CAS 1371592-05-0)
- Ethyl 3-Oxocyclobutanecarboxylate (CAS 87121-89-9)
- Butyl[(3-chlorophenyl)methyl]amine (CAS 16183-35-0)
- 6-(trifluoromethyl)piperidine-2-carboxylic acid hydrochloride (CAS 1803571-89-2)
- Peptide 433 (CAS CATO-CPTD788433)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com