Azithromycin EP Impurity J CAS 117693-41-1
| CAS No. | 117693-41-1 |
| Molecular Formula | C30H58N2O9 |
| Molecular Weight | 590.79 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Azithromycin EP Impurity J is closely related to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Azithromycin EP Impurity J (CAS 117693-41-1) is a certified pharmaceutical impurity reference standard with the molecular formula C30H58N2O9 and a molecular weight of 590.79 g/mol.
Azithromycin EP Impurity J (C30H58N2O9) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Azithromycin EP Impurity J under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C30H58N2O9 |
| Molecular Weight | 590.79 g/mol |
| Appearance | White to pale yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 2 |
Related Azithromycin Standards
- Azithromycin Impurity 4 (CAS CATO-C4X-10034)
- Azithromycin Impurity 44 (CAS 2365312-76-9)
- Azithromycin impurity 22 (CAS CATO-C4X-100322)
- Azithromycin Impurity 33 (CAS CATO-C4X-100333)
- Azithromycin Impurity 38 (CAS CATO-C4X-100338)
- Azithromycin impurity 62 (CAS 857078-26-3)
- Azithromycin EP Impurity N (CAS 612069-25-7)
- Azithromycin Impurity 34 (CAS CATO-C4X-100334)
Recommended Standards
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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