Clopidogrel Impurity 72 CAS CATO-C4X-102972
| CAS No. | CATO-C4X-102972 |
| Molecular Formula | C18H20ClNO3S |
| Molecular Weight | 365.87 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Clopidogrel Impurity 72 (CAS CATO-C4X-102972), a pharmacopoeial impurity reference standard (molecular formula C18H20ClNO3S, MW 365.87 g/mol) used for the identification and quantification of trace impurities in APIs.
Clopidogrel Impurity 72 (C18H20ClNO3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Clopidogrel Impurity 72 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 | C18H20ClNO3S |
| Molecular Weight | 365.87 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Clopidogrel Standards
- Clopidogrel Impurity 57 (CAS CATO-C4X-102957)
- Clopidogrel thiol metabolite H3 (CAS 1352123-33-1)
- Clopidogrel thiol metabolite H2 (CAS 1415550-27-4)
- Clopidogrel thiol metabolite H1 (CAS 1415550-28-5)
- Clopidogrel Metabolite I (Mixture of Diastereomers) (CAS 767612-34-0)
- Clopidogrel Impurity 91 (CAS 317322-48-8)
- Clopidogrel Impurity 100 (CAS CATO-C4X-1029100)
- Clopidogrel Impurity 50 (CAS CATO-C4X-102950)
Recommended Standards
- Ethyl 2-(3-chloropropanamido)-4-(3,4-dimethylphenyl)thiophene-3-carboxylate (CAS 618395-04-3)
- 1-(4-(4-Chlorophenyl)thiazol-2-yl)-N-(2-hydroxyethyl)piperidine-4-carboxamide (CAS 1033463-18-1)
- 3-(Tert-butyl)-4-((4-chlorophenyl)sulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine (CAS 338747-77-6)
- 5-[(4-Benzyl-1-piperazinyl)sulfonyl]-2-chloroaniline (CAS 1220029-36-6)
- Ramelteon Impurity 24 (CAS 221530-38-7)
- Telmisartan Impurity 51 (CAS 99-36-5)
- Loratadine Impurity 61 (CAS CATO-C4X-142661)
- Salmeterol Dimer Impurity (CAS 1391051-88-9)
- 1-Cyclopropyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid (CAS 773098-78-5)
- (5-(2-Chlorophenyl)furan-2-yl)(piperidin-1-yl)methanone (CAS 618403-08-0)
- Isoquinoline-7-sulfonyl chloride (CAS 1374652-25-1)
- 2-Amino-2-(2,5-dichlorophenyl)ethanol hydrochloride (CAS 2411638-49-6)
- A 1110u (CAS 96860-23-0)
- Osteogenic Growth Peptide (CAS 132996-61-3)
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