Azithromycin Impurity 34 CAS CATO-C4X-100334
| CAS No. | CATO-C4X-100334 |
| Molecular Formula | C36H68N2O12 |
| Molecular Weight | 720.93 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Azithromycin Impurity 34 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
As a process- or degradation-related impurity, Azithromycin Impurity 34 (CAS CATO-C4X-100334, C36H68N2O12) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C36H68N2O12, Azithromycin Impurity 34 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 720.93 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C36H68N2O12 |
| Molecular Weight | 720.93 g/mol |
| Purity | 97%+ |
| 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 |
| Nitrogen Atoms | 2 |
Related Azithromycin Standards
- Azithromycin EP Impurity E (CAS 612069-27-9)
- Azithromycin EP Impurity N (CAS 612069-25-7)
- Azithromycin impurity 62 (CAS 857078-26-3)
- Azithromycin Impurity 38 (CAS CATO-C4X-100338)
- 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
- Erythromycin C reduced derivatives (CAS CATO-C4X-100169)
- Erythromycin thiocyanate impurity B reduced derivative (CAS CATO-C4X-100166)
- N,N'-Bis(9,9-dimethyl-9H-fluoren-2-yl)-N,N'-diphenylbenzidine (CAS 361486-60-4)
- Andamertinib Impurity 1 (CAS CATO-C4X-35351)
- Leuprorelin EP Impurity A Acetate (CAS CATO-C4X-182215)
- AZD-9291 Impurity 14 (CAS 1975982-94-5)
- Vancomycin impurity 25 (CAS CATO-C4X-177525)
- 2-((Benzyloxy)methyl)-4-hydroxy-5-nitropyridazin-3(2H)-one (CAS 92574-76-0)
- (Z)-N-(1-Bromo-1-(4-fluorophenyl)-3-oxo-3-(piperidin-1-yl)prop-1-en-2-yl)benzamide (CAS 1800044-69-2)
- Alanylserine (CAS 3062-19-9)
- 3,5-Diphenyl-1,3,5-thiadiazinane-2-thione (CAS 14318-36-6)
- 2,6-Diethyl-5-thioxo-5,6-dihydro-2H-pyrazolo[4,3-d]pyrimidin-7(4H)-one (CAS 828299-89-4)
- 5-(4-Chloro-3-nitrophenyl)-3-(3-chlorophenyl)-1,2,4-oxadiazole (CAS 1779134-05-2)
- Liraglutide Impurity 28 (CAS CATO-C4X-199228)
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