Azithromycin EP Impurity C CAS 620169-47-3
Purity >90%In StockPharmacopoeial Impurity Standards
| CAS No. | 620169-47-3 |
| Molecular Formula | C37H70N2O12 |
| Molecular Weight | 734.96 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Azithromycin EP Impurity C (CAS 620169-47-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C37H70N2O12. Molecular weight: 734.96 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C37H70N2O12 |
| Molecular Weight | 734.96 g/mol |
| Purity | >90% |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Related Azithromycin Standards
- Azithromycin EP Impurity A (CAS 76801-85-9)
- Azithromycin EP Impurity I (CAS 172617-84-4)
- Azithromycin EP Impurity B (CAS 307974-61-4)
- Azithromycin impurity 53 (CAS 152727-04-3)
- Azithromycin CP Impurity Q (CAS 99290-97-8)
- Azithromycin CP Impurity R (CAS 161193-44-8)
- Azithromycin Impurity 23 (CAS CATO-C4X-100323)
- Azithromycin Impurity 50 (CAS CATO-C4X-100350)
Recommended Standards
- （See C4X-100319）Azithromycin EP Impurity A (See C4X-100319) (CAS CATO-C4X-10037)
- N-Despropyl Gamithromycin (CAS 145388-07-4)
- Pyridinium, 4,4′,4′′,4′′′-(21H,23H-porphine-5,10,15,20-tetrayl)tetrakis[1-ethyl- (CAS 149270-91-7)
- Bilastine impurity 81 (CAS CATO-C4X-225381)
- Hydrocortisone impurity 42 (CAS CATO-C4X-140142)
- 3-Bromo-1-(1-methyl-1h-pyrazol-4-yl)pyrrolidin-2-one (CAS 1311314-47-2)
- Ethyl 3-(4-bromo-3-fluorophenyl)propanoate (CAS 1261778-92-0)
- 4-{6-chloro-[1,2,4]triazolo[4,3-b]pyridazin-3-yl}butanoic acid (CAS 1146291-11-3)
- N-(3,4,5-Trimethoxyphenyl)-7h-pyrrolo[2,3-d]pyrimidin-2-amine (CAS 885702-32-9)
- Palmitoyl Tripeptide-1 HCl (CAS 2757690-14-3)
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