Clopidogrel Impurity N2 Sulfate CAS 2137493-39-9
| CAS No. | 2137493-39-9 |
| Molecular Formula | C16H16ClNO2S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Clopidogrel Impurity N2 Sulfate 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 N2 Sulfate (CAS 2137493-39-9), a pharmacopoeial impurity reference standard (molecular formula C16H16ClNO2SH2O4S, MW 419.89 g/mol) used for the identification and quantification of trace impurities in APIs.
Clopidogrel Impurity N2 Sulfate (C16H16ClNO2SH2O4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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.
Physical & Chemical Properties
| Molecular Formula | C16H16ClNO2S H2O4S |
| Molecular Weight | 419.89 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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
- Sivelestat Impurity 7 (CAS 1071827-84-3)
- Indocyanine Green Impurity 14 (CAS 1497-49-0)
- Formoterol impurity 128 (CAS CATO-C4X-1525128)
- 2,6-Dichloro-4-methylbenzenesulfonamide (CAS 871876-37-8)
- Alendronate EP Impurity C (CAS 14901-63-4)
- 4-Ethoxy-2-fluoro-1-nitrobenzene (CAS 28987-48-6)
- 6-Butyl-4-methylpyridin-3-amine (CAS 1694880-73-3)
- Tris(1,3-dichloro-2-propyl) Phosphate (CAS 13674-87-8)
- Ac-Asn-OH (CAS 4033-40-3)
- Liraglutide Impurity 20 TFA Salt (CAS CATO-C4X-199220)
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