Clindamycin Impurity 21 CAS CATO-C4X-134121
| CAS No. | CATO-C4X-134121 |
| Molecular Formula | C35H65ClN2O6S |
| Molecular Weight | 677.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Clindamycin Impurity 21 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Clindamycin Impurity 21 (CAS CATO-C4X-134121, C35H65ClN2O6S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C35H65ClN2O6S, Clindamycin Impurity 21 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 677.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 21 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 | C35H65ClN2O6S |
| Molecular Weight | 677.42 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Clindamycin Standards
- Clindamycin Sulfoxide 2-Palmitate Isomer (CAS CATO-C4X-1341124)
- Clindamycin Impurity 155 (CAS CATO-C4X-1341155)
- Clindamycin Palmitate Impurity 104 (CAS CATO-C4X-1341104)
- Clindamycin 3-Palmitate (CAS CATO-C4X-1341129)
- Clindamycin Impurity 20 (CAS 36688-78-5)
- Clindamycin Impurity 49 (CAS CATO-C4X-134149)
- Clindamycin Palmitate Impurity 97 (CAS CATO-C4X-134197)
- Clindamycin Impurity 98 (CAS 68225-59-2)
Recommended Standards
- UDP-N-acetylglucosamine enolpyruvate (CAS 70222-94-5)
- N-Acetyllactosamine Heptaacetate (CAS 36954-63-9)
- Platinum,bis(3-amino-2H-1-benzopyran-2-one-N)dibromo- (CAS 76294-98-9)
- 2-(| inverted exclamation markcetylamino)-2-deoxy-4-O-(2,3,4,6-tetra-O-acetyl-|A-D-galactopyranosyl)-D-glucopyranose 1,3,6-Triacetate 73208-61-4 N-Acetyllactosamine Heptaacetate (CAS 73208-61-4)
- Nemonoxacin Impurity 24 (CAS CATO-C4X-312824)
- Deoxycholic acid Impurity 1 (CAS CATO-C4X-33591)
- Valaciclovir EP Impurity R (CAS 142963-59-5)
- 3-(6-Methylpyridin-3-yl)propanoic acid (CAS 118420-23-8)
- Ethyl 2-cyano-3-(3-methoxy-4-(2-oxo-2-((4-phenoxyphenyl)amino)ethoxy)phenyl)acrylate (CAS 337924-92-2)
- 2-Bromo-3-chloro-5-fluorobenzoic acid (CAS 1525442-25-4)
- Ciguatoxin 1 (CAS 11050-21-8)
- Lodoxamide lmpurity 11 (CAS 67451-38-1)
- (2R,3R,4S,5R)-2-(2-Chloro-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 5466-11-5)
- D-γ-Glu20-Side-Tirzepatide (CAS CATO-CPTD788929)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com