Loratadine EP Impurity A CAS 133284-74-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 133284-74-9 |
| Molecular Formula | C22H25ClN2O3 |
| Molecular Weight | 400.90 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Loratadine EP Impurity A (CAS 133284-74-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C22H25ClN2O3. Molecular weight: 400.90 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C22H25ClN2O3 |
| Molecular Weight | 400.90 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Loratadine Standards
- Loratadine Impurity 39 (CAS CATO-C4X-142639)
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- Loratadine Epoxide (CAS 1189694-51-6)
- Loratadine impurity 11 (CAS 165739-62-8)
- Loratadine Impurity 35 (CAS CATO-C4X-142635)
- Loratadine Impurity 37 (CAS CATO-C4X-142637)
- Loratadine Impurity 38 (CAS 403484-49-1)
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