Clopidogrel Impurity 21 CAS 2418591-13-4
| CAS No. | 2418591-13-4 |
| Molecular Formula | C14H13ClNS |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine/bromine substitution, Clopidogrel Impurity 21 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 342.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Clopidogrel Impurity 21 (CAS 2418591-13-4), a pharmacopoeial impurity reference standard (molecular formula C14H13ClNSBr, MW 342.68 g/mol) used for the identification and quantification of trace impurities in APIs.
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 21 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 | C14H13ClNS Br |
| Molecular Weight | 342.68 g/mol |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| 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
- Baloxavir Marboxil Impurity 172 (CAS CATO-C4X-2108172)
- Glycerol Impurity 10 (Disulfide Oxidation Product) (CAS 4807-52-7)
- Terbutaline EP Impurity D (Hydrobromide) (CAS 1797117-23-7)
- (1R)-7-fluorotetralin-1-ol (CAS 748795-21-3)
- 4-(tert-Butyl)-2-methylpyrimidine (CAS 66621-93-0)
- 6-Ethyl-1H,2H,3H,4H,5H-pyrrolo[3,4-c]pyridine-1,4-dione (CAS 1148027-26-2)
- (4-(2-(Cyclopentylamino)ethoxy)-3-fluorophenyl)boronic acid (CAS 1704096-02-5)
- Prilocaine impurity 48 (CAS CATO-C4X-193448)
- (2E)-3-(4-Chlorophenyl)-1-{4-[(2E)-3-phenylprop-2-en-1-yl]piperazin-1-yl}prop-2-en-1-one (CAS 236751-51-2)
- Insulin Degludec Impurity 26 (CAS CATO-C4X-215726)
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