Lincomycin Impurity 20 CAS CATO-C4X-134220
| CAS No. | CATO-C4X-134220 |
| Molecular Formula | C18H34N2O6S |
| Molecular Weight | 406.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Lincomycin Impurity 20 (CAS CATO-C4X-134220) is a certified pharmaceutical impurity reference standard with the molecular formula C18H34N2O6S and a molecular weight of 406.54 g/mol.
The molecular framework of Lincomycin Impurity 20 (C18H34N2O6S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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), Lincomycin Impurity 20 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 | C18H34N2O6S |
| Molecular Weight | 406.54 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) | 3.0 |
| UV Absorption | UV-absorbing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Lincomycin Standards
- Lincomycin EP Impurity D(Clindamycin EP Impurity D) (CAS 17017-22-0)
- Lincomycin Impurity 19 (CAS CATO-C4X-134219)
- Lincomycin Impurity 21 (CAS CATO-C4X-134221)
- Lincomycin Impurity 23 (CAS CATO-C4X-134223)
- Lincomycin Impurity 24 (CAS CATO-C4X-134224)
- Lincomycin EP Impurity A (CAS CATO-C4X-13423)
- Lincomycin Hydrochloride Impurity B (Mixture of Diastereomers) (CAS CATO-C4X-13424)
- Lincomycin-d3 (CAS CATO-C4X-134215)
Recommended Standards
- Clindamycin Impurity 96 (CAS CATO-C4X-134196)
- Clindamycin Impurity 95 (CAS CATO-C4X-134195)
- Clindamycin-DeA (CAS CATO-C4X-134192)
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- Baloxavir Impurity 115 (CAS CATO-C4X-2108115)
- [y-Glu3]-Semaglutide Impurity 135 (CAS CATO-C4X-2226135)
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Why CATO?
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com