Clopidogrel Impurity 118 CAS CATO-C4X-1029118
| CAS No. | CATO-C4X-1029118 |
| Molecular Formula | C16H15ClNO2S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Clopidogrel Impurity 118 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies Clopidogrel Impurity 118 (CAS CATO-C4X-1029118), a pharmacopoeial impurity reference standard (molecular formula C16H15ClNO2SH2O4P, MW 417.80 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a sulfone group, a phosphate ester group, a hydroxyl group, an ether linkage, chlorine substitution, Clopidogrel Impurity 118 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 417.80 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C16H15ClNO2S H2O4P |
| Molecular Weight | 417.80 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-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
- Pelubiprofen Impurity 1 (CAS CATO-C4X-21271)
- Megestrol Acetate EP Impurity E (CAS 982-89-8)
- Dapagliflozin Impurity 36 (CAS 2040305-05-1)
- 6-Fluoro-3-iodoquinoline (CAS 1802820-04-7)
- 1-(cyclopropanesulfonyl)-1,4-diazepane hydrochloride (CAS 1403952-62-4)
- Methyl 2-amino-3-(4-vinylphenyl)propanoate (CAS 1822422-79-6)
- Pyrimido[5,4-c]pyridazine (CAS 6133-46-6)
- 3,5-Dibromo-2-fluorobenzyl chloride (CAS 1806354-68-6)
- 5-(1-Methyl-1H-pyrazol-5-yl)-3-(piperidin-4-ylmethyl)-1,2,4-oxadiazole (CAS 1707586-09-1)
- Semaglutide Impurity 176 (CAS CATO-C4X-2226176)
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