(R)-Fexofenadine CAS 139965-10-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 139965-10-9 |
| Molecular Formula | C32H39NO4 |
| Molecular Weight | 501.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(R)-Fexofenadine (CAS 139965-10-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C32H39NO4. Molecular weight: 501.66 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C32H39NO4 |
| Molecular Weight | 501.66 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
Related R Standards
- (S)-Fexofenadine (CAS 139965-11-0)
- Fexofenadine EP Impurity B (CAS 479035-75-1)
- Fexofenadine (CAS 83799-24-0)
- Fexofenadine EP Impurity A (CAS 76811-98-8)
- Fexofenadine Impurity 13 (CAS 1010812-98-2)
- Fexofenadine Impurity 28 (CAS CATO-C4X-179428)
- Fexofenadine-D6 (CAS 548783-71-7)
- Fexofenadine Impurity 19 (CAS CATO-C4X-179419)
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