Valsartan EP Impurity B CAS 137863-20-8
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 137863-20-8 |
| Molecular Formula | C31H35N5O3 |
| Molecular Weight | 525.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Valsartan EP Impurity B (CAS 137863-20-8) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C31H35N5O3. Molecular weight: 525.64 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C31H35N5O3 |
| Molecular Weight | 525.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 5 |
Related Valsartan Standards
- Valsartan Impurity 150 (CAS CATO-C4X-1057150)
- Valsartan Impurity 64 (CAS 143618-44-4)
- Valsartan Impurity 49 (CAS CATO-C4X-105749)
- Valsartan Impurity 28 (CAS 154709-17-8)
- Valsartan Impurity 57 (CAS 1353844-77-5)
- 4-Oxo Valsartan Benzyl Ester (CAS 188240-32-6)
- Valsartan Impurity 118 (CAS CATO-C4X-1057118)
- Valsartan Impurity 119 (CAS CATO-C4X-1057119)
Recommended Standards
- Bazedoxifene Acetate Impurity 8 (CAS 1802552-31-3)
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- Almonertinib (CAS 1899921-05-1)
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- Gefitinib Impurity 24 (CAS CATO-C4X-111724)
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- 3-Chloro-N-(4-chloro-2-(trifluoromethyl)phenyl)propanamide (CAS 1016674-58-0)
- N-Methoxy-N-methyl-6-quinoxalinecarboxamide (CAS 875558-38-6)
- Pancreatic Polypeptide (bovine) (CAS 179986-89-1)
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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