Ribavirin Impurity 26 CAS 57281-13-7
| CAS No. | 57281-13-7 |
| Molecular Formula | C4H5N3O3 |
| Molecular Weight | 143.10 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ribavirin Impurity 26 (CAS 57281-13-7) is a certified pharmaceutical impurity reference standard with the molecular formula C4H5N3O3 and a molecular weight of 143.10 g/mol.
Based on its molecular formula C4H5N3O3, Ribavirin Impurity 26 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 143.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Ribavirin Impurity 26 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H5N3O3 |
| Molecular Weight | 143.10 g/mol |
| Purity | 97%+ |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1973 |
| Nitrogen Atoms | 3 |
Related Ribavirin Standards
- Ribavirin Impurity V (CAS 89797-67-1)
- Ribavirin Impurity 48 (CAS 613-83-2)
- Ribavirin Impurity 37 (CAS CATO-C4X-141337)
- Ribavirin Impurity 27 (CAS 1319257-87-8)
- Ribavirin Impurity 52 (CAS 3641-13-2)
- Ribavirin Impurity 51 (CAS 4928-88-5)
- Ribavirin Impurity 56 (CAS CATO-C4X-141356)
- Ribavirin Impurity 39 (CAS CATO-C4X-141339)
Recommended Standards
- Ornidazole Impurity 89 (CAS CATO-C4X-133189)
- Lamotrigine Impurity 23 (CAS 30885-95-1)
- Nifuratel Impurity 26 (CAS 2493-04-1)
- 2-(2,2,2-Trifluoroethoxy)ethanamine (CAS 105939-65-9)
- Avanafil Impurity 122 (CAS CATO-C4X-1118122)
- Oseltamivir fructose adduct impurity 91 (CAS CATO-C4X-1720291)
- Perampanel impurity 41 (CAS CATO-C4X-243041)
- 5,5-Dimethyl-2-(((3-nitrophenyl)amino)methylene)cyclohexane-1,3-dione (CAS 64495-92-7)
- 4-Chloro-2-methyl-6-(1-methyl-piperidin-4-yl)-pyrimidine (CAS 1316225-86-1)
- 5,6,14,15-Dibenzo-1,4-dioxa-8,12-diazacyclopentadeca-5,14-diene (CAS 65639-43-2)
- Ethyl 5-Methoxyindole-3-carboxylate (CAS 59292-36-3)
- 6-Ethyl-1H,2H,3H,4H,5H-pyrrolo[3,4-c]pyridine-1,4-dione (CAS 1148027-26-2)
- Ixazomib Impurity 48 (CAS CATO-C4X-126748)
- (Cys2)-Neuropeptide Y-8-aminooctanoyl-(D-Cys27)-Neuropeptide Y (25-32) (H-3298.0500) (CAS 128806-04-2)
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 18665070610 / Nicole.chen@cato-chem.com