Amlodipine Besylate EP Impurity E CAS 140171-65-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 140171-65-9 |
| Molecular Formula | C21H27ClN2O5 |
| Molecular Weight | 422.90 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Amlodipine Besylate EP Impurity E (CAS 140171-65-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C21H27ClN2O5. Molecular weight: 422.90 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C21H27ClN2O5 |
| Molecular Weight | 422.90 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Amlodipine Standards
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- Amlodipine Impurity 24 (CAS 90445-14-0)
- Amlodipine Impurity 80 (CAS CATO-C4X-109580)
- Amlodipine Impurity 99 (CAS CATO-C4X-109599)
- Amlodipine Impurity 153 (CAS 2923811-73-6)
- Amlodipine Metabolite 4 (CAS 113994-45-9)
Recommended Standards
- N-Benzyl-1-(3-chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)-N-methylpiperidine-4-carboxamide (CAS 439108-74-4)
- 2-{[(4-chlorophenyl)carbamoyl]amino}-3-phenylpropyl 3-methylbenzoate (CAS 338963-27-2)
- 2-[2-(4-Chlorophenyl)-4-phenyl-1,3-thiazol-5-yl]-N-(4-fluorophenyl)acetamide (CAS 338957-19-0)
- Vonoprazan Impurity 131 (CAS 881674-01-7)
- CAS 84212-55-5 (CAS 84212-55-5)
- Ethyl 5-amino-3-(methylthio)-1H-pyrazole-4-carboxylate (CAS 1219817-46-5)
- (3S)-3-(2-thienylthio)butanoic acid (CAS 133359-80-5)
- Benzyl N-(4-chloro-3-fluorophenyl)carbamate (CAS 1098184-77-0)
- 1-Methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-benzo[d]imidazole (CAS 1107627-02-0)
- Semaglutide impurity 29 (CAS 1188328-22-4)
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