Clopidogrel Impurity 31 CAS 19995-38-1
| CAS No. | 19995-38-1 |
| Molecular Formula | C6H7ClS |
| Molecular Weight | 146.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Clopidogrel Impurity 31 (CAS 19995-38-1), a pharmacopoeial impurity reference standard (molecular formula C6H7ClS, MW 146.64 g/mol) used for the identification and quantification of trace impurities in APIs.
Clopidogrel Impurity 31 (C6H7ClS) contains sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Clopidogrel Impurity 31 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.
Physical & Chemical Properties
| Molecular Formula | C6H7ClS |
| Molecular Weight | 146.64 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Clopidogrel Standards
- Clopidogrel Impurity 48 (CAS 111954-31-5)
- Clopidogrel Impurity 14 (CAS 5402-55-1)
- Clopidogrel Impurity 69 (CAS 131202-62-5)
- Clopidogrel Impurity 70 (CAS 13679-64-6)
- Clopidogrel Impurity 87 (CAS 26118-14-9)
- Clopidogrel Impurity 16 (CAS 138228-61-2)
- Clopidogrel Impurity 12 (CAS 141196-64-7)
- Clopidogrel Impurity 67 (CAS 7292-71-9)
Recommended Standards
- 2-(Chloromethyl)-5-methylthiophene (CAS 34776-73-3)
- (1-Chloroethyl)cyclohexane (CAS 1073-43-4)
- 2-(Chloromethyl)-3-methylthiophene (CAS 92521-25-0)
- (2-Chloroethyl)cyclohexane (CAS 1073-61-6)
- Rivaroxaban Impurity 162 (CAS 2197189-55-0)
- Azithromycin Impurity 23 (CAS CATO-C4X-100323)
- Vonoprazan Fumarate Impurity 23 (CAS 928615-46-7（free base）)
- 5-Bromo-1,3-dimethyl-1H-indole (CAS 10075-49-7)
- 2-HYdroxy-1,8-cineole (CAS 60761-00-4)
- (S)-2-amino-3-(4-hexyl-3-oxo-2,3-dihydroisoxazol-5-yl)propanoic acid (alphas)-alpha-Amino-4-hexyl-2,3-dihydro-3-oxo-5-isoxazolepropanoic acid 334887-48-8 (CAS 334887-48-8)
- 4-Methyl-4-(2-propen-1-yl)-cyclohexanone (CAS 117360-99-3)
- CB-86 (CAS 1150586-64-3)
- (Z)-2-(2-fluorobenzylidene)quinuclidin-3-ol (CAS 477848-27-4)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
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