Clopidogrel Impurity 64 CAS CATO-C4X-102964
| CAS No. | CATO-C4X-102964 |
| Molecular Formula | C16H13ClNO2S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Clopidogrel Impurity 64 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.
CATO supplies Clopidogrel Impurity 64 (CAS CATO-C4X-102964), a pharmacopoeial impurity reference standard (molecular formula C16H13ClNO2SBr, MW 398.70 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, Clopidogrel Impurity 64 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 398.70 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C16H13ClNO2S Br |
| Molecular Weight | 398.70 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Clopidogrel Standards
- Clopidogrel Impurity 74 (CAS 1008008-56-7)
- Clopidogrel Impurity 82 (CAS 1015247-87-6)
- rac-Clopidogrel EP Impurity A HCl (CAS 1015247-88-7)
- rac Clopidogrel [(tert-Butylcarbonyl)oxy]methyl ester (CAS 1043913-82-1)
- 2-Oxo Clopidogrel (Mixture of Diastereomers) (CAS 109904-27-0)
- Clopidogrel Impurity 42 (CAS 109904-36-1)
- cis-Clopidogrel glutathione disulfide, mixture of diastereomers (CAS 1118605-95-0)
- Clopidogrel Impurity 48 (CAS 111954-31-5)
Recommended Standards
- Ziprasidone Impurity 9 (CAS 118289-55-7)
- Azelastine Impurity 20 (CAS 47491-38-3)
- Perindopril Impurity 30 (CAS 145682-38-8)
- 1-(4-(2-Fluorophenoxy)phenyl)ethan-1-one (CAS 58775-91-0)
- 2-((3,5-Dimethylisoxazol-4-yl)sulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (CAS 1007952-40-0)
- (R)-1-(2-Bromopyridin-4-yl)ethanamine dihydrochloride (CAS 1391423-76-9)
- 2-((1-Cyclohexyl-1H-imidazol-2-yl)thio)-N-(4-(trifluoromethyl)phenyl)acetamide (CAS 946202-29-5)
- N-((1-Ethyl-1H-pyrazol-3-yl)methyl)-1,3-dimethyl-1H-pyrazol-4-amine hydrochloride (CAS 1856031-52-1)
- 5-methyl-1-(pyridin-4-ylmethyl)-1H-1,2,3-triazole-4-carboxylic acid hydrochloride (CAS 1803601-84-4)
- Semaglutide Impurity 185 (CAS CATO-C4X-2226185)
Why CATO?
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