Clindamycin Impurity 57 CAS CATO-C4X-134157
| CAS No. | CATO-C4X-134157 |
| Molecular Formula | C18H32Cl2N2O4S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Clindamycin Impurity 57 (CAS CATO-C4X-134157), a pharmacopoeial impurity reference standard (molecular formula C18H32Cl2N2O4S, MW 443.42 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Clindamycin Impurity 57 (C18H32Cl2N2O4S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Clindamycin Impurity 57 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 | C18H32Cl2N2O4S |
| Molecular Weight | 443.42 g/mol |
| Purity | >95% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Clindamycin Standards
- Clindamycin Impurity 164 (CAS 1123211-65-3 (free base))
- Clindamycin Impurity 16 (CAS 1123211-66-4)
- Clindamycin Impurity 73 (CAS 1123211-66-4 (free base))
- Clindamycin Pentadecanoate HCl (CAS 1123211-67-5 (free base);)
- Clindamycin Heptadecanoate (CAS 1123211-69-7 (free base))
- Clindamycin Impurity 22 HCI (CAS 1123211-70-0（free base）)
- Clindamycin phosphate ester EP impurity F isomer (CAS 1149764-21-5)
- Clindamycin Phosphate Sulfoxide Impurity (CAS 1228573-90-7)
Recommended Standards
- Methylprednisolone Impurity 69 (CAS CATO-C4X-191969)
- Pinaverium Impurity 4 (CAS CATO-C4X-24674)
- Cefdinir Impurity 30 (CAS CATO-C4X-121030)
- 3-Amino-N-(propan-2-yl)-6-(thiophen-2-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxamide (CAS 371945-19-6)
- 2-(2-Bromoethyl)oxirane (CAS 13287-42-8)
- N-(3-Cyano-6-methyl-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetamide (CAS 331869-84-2)
- 1-[(4-bromophenyl)methyl]cyclopropan-1-ol (CAS 1247169-35-2)
- 5-[4-(trifluoromethyl)phenyl]-4h-1,2,4-triazol-3-amine (CAS 178556-79-1)
- (E)-N'-benzoyl-N-((4-chlorobenzyl)oxy)formohydrazonamide (CAS 338791-38-1)
- Semaglutide impurity 74 (CAS CATO-C4X-222674)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com