Mupirocin Impurity 28 CAS CATO-C4X-170628
| CAS No. | CATO-C4X-170628 |
| Molecular Formula | C50H82O17 |
| Molecular Weight | 955.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Mupirocin Impurity 28 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.
CATO supplies Mupirocin Impurity 28 (CAS CATO-C4X-170628), a pharmacopoeial impurity reference standard (molecular formula C50H82O17, MW 955.18 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C50H82O17, Mupirocin Impurity 28 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 955.18 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), Mupirocin Impurity 28 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 | C50H82O17 |
| Molecular Weight | 955.18 g/mol |
| Purity | >90% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Mupirocin Standards
- Mupirocin Dimer Impurity 29 (CAS CATO-C4X-170629)
- Mupirocin Impurity 22 (CAS CATO-C4X-170622)
- Mupirocin Dimer 4 (CAS CATO-C4X-170638)
- Mupirocin Dimer 1 (CAS CATO-C4X-170619)
- Mupirocin impurity 33 (CAS CATO-C4X-170633)
- Mupirocin Dimer 3 (CAS CATO-C4X-170631)
- Mupirocin Impurity 23 (CAS CATO-C4X-170623)
- Mupirocin impurity 34 (CAS CATO-C4X-170634)
Recommended Standards
- Deltorphin (CAS 119975-64-3)
- N2,N2,N2',N2'-Tetra([1,1'-biphenyl]-4-yl)-9,9'-spirobi[fluorene]-2,2'-diamine (CAS 1174006-39-3)
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- MK-2 Dye (CAS 1037440-21-3)
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- Altrenogest impurity 17 (CAS 32259-88-4)
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