Azathioprine EP Impurity C CAS 4897-25-0
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 4897-25-0 |
| Molecular Formula | C4H4ClN3O2 |
| Molecular Weight | 161.55 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Azathioprine EP Impurity C (CAS 4897-25-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C4H4ClN3O2. Molecular weight: 161.55 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C4H4ClN3O2 |
| Molecular Weight | 161.55 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Azathioprine Standards
- Azathioprine EP Impurity D (CAS 6339-54-4)
- Azathioprine Impurity 8 (CAS 50-66-8)
- Azathioprine Impurity 6 (CAS 154-42-7)
- Azathioprine Impurity 9 (CAS 1190008-04-8)
- Azathioprine EP Impurity B (CAS 157930-13-7)
- Azathioprine EP Impurity B (CAS 50-44-2)
- Azathioprine Impurity 21 (CAS 30467-02-8)
- Azathioprine Impurity 12 (CAS 1192-53-6)
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