【停用，见C4X-170627】Mupirocin impurity 37 CAS CATO-C4X-170637
| CAS No. | CATO-C4X-170637 |
| Molecular Formula | C52H88O18 |
| Molecular Weight | 1001.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 【停用，见C4X-170627】Mupirocin impurity 37 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, 【停用，见C4X-170627】Mupirocin impurity 37 (CAS CATO-C4X-170637, C52H88O18) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C52H88O18, 【停用，见C4X-170627】Mupirocin impurity 37 contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 1001.24 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), 【停用，见C4X-170627】Mupirocin impurity 37 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.
Physical & Chemical Properties
| Molecular Formula | C52H88O18 |
| Molecular Weight | 1001.24 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Recommended Standards
- Mupirocin impurity 35 (CAS CATO-C4X-170635)
- Mupirocin Open-ring Dimer 3 (CAS CATO-C4X-170641)
- Mupirocin impurity 32 (CAS CATO-C4X-170632)
- Mupirocin Open-ring Dimer 2 (CAS CATO-C4X-170642)
- Rtitrexed Impurity 26 (CAS CATO-C4X-138626)
- Gadoteridol impurity 39 (CAS 2172857-50-8（free base）)
- Umeclidinium Impurity 1 (CAS 1509910-91-1)
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