Clindamycin Impurity 69 CAS 198080-64-7
| CAS No. | 198080-64-7 |
| Molecular Formula | C18H32N2O5S |
| Molecular Weight | 388.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Clindamycin Impurity 69 is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Clindamycin Impurity 69 (CAS 198080-64-7) is a certified pharmaceutical impurity reference standard with the molecular formula C18H32N2O5S and a molecular weight of 388.52 g/mol.
Clindamycin Impurity 69 (C18H32N2O5S) contains a steroid core, an amide group, a sulfone 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), Clindamycin Impurity 69 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 | C18H32N2O5S |
| Molecular Weight | 388.52 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| CAS Registry Year (est.) | 2013 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Clindamycin Standards
- Clindamycin Impurity 4 (CAS CATO-C4X-13414)
- Clindamycin EP Impurity A (CAS 154-21-2)
- Clindamycin-DeA (CAS CATO-C4X-134192)
- Clindamycin Impurity 95 (CAS CATO-C4X-134195)
- Clindamycin Impurity 96 (CAS CATO-C4X-134196)
- Clindamycin EP Impurity B (CAS 18323-43-8)
- Clindamycin Palmitate Impurity 100 (CAS 2839928-15-1)
- Clindamycin Palmitate Impurity 50 (CAS CATO-C4X-134150)
Recommended Standards
- N-(2-(Azepan-1-yl)-2-(thiophen-3-yl)ethyl)-2-(2-methoxyphenoxy)acetamide (CAS 946199-79-7)
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- 2-Amino-6-tert-butyl-N-(2,4-dimethoxyphenyl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (CAS 587851-01-2)
- (2R,3R,4R)-5-((tert-butyldiphenylsilyl)oxy)-2,3,4-trihydroxypentanal (CAS 198024-13-4)
- Famciclovir Impurity 27 (CAS CATO-C4X-164227)
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- Ethyl 3-cyano-2-oxopyrrolidine-1-carboxylate (CAS 153929-20-5)
- trans,trans,cis-1,5,9-Cyclododecatriene (CAS 706-31-0)
- 2-(Benzylthio)-1-(2,4-dichloro-5-isopropoxyphenyl)-1H-imidazole (CAS 338967-21-8)
- Dotinurad Impurity 218 (CAS CATO-C4X-2494218)
- 2-Cyclohexyl-2-(2-(p-tolyl)-2,4,5,6-tetrahydrocyclopenta[c]pyrazol-3-yl)ethanol (CAS 1363405-97-3)
- 1-(2-Chlorophenyl)-5-(pyridin-4-yl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1017458-46-6)
- [3,5 Diiodo-Tyr7] Peptide T (CAS 128551-40-6)
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