Clopidogrel Impurity 5 CAS CATO-C4X-10295
| CAS No. | CATO-C4X-10295 |
| Molecular Formula | C16H15ClNO2S |
| Molecular Weight | 320.81 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Clopidogrel Impurity 5 (CAS CATO-C4X-10295) is a certified pharmaceutical impurity reference standard with the molecular formula C16H15ClNO2S and a molecular weight of 320.81 g/mol.
Based on its molecular formula C16H15ClNO2S, Clopidogrel Impurity 5 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 320.81 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H15ClNO2S |
| Molecular Weight | 320.81 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Clopidogrel Standards
- rac-Clopidogrel, >98% (CAS 90055-48-4)
- Clopidogrel EP impurity B (CAS 1396841-05-6)
- (S)-Clopidogrel (CAS 113665-84-2)
- Clopidogrel Impurity 42 (CAS 109904-36-1)
- Clopidogrel Impurity 45 (Mixture of Diastereomers) (CAS CATO-C4X-102945)
- rac-Clopidogrel Acid N-Oxide (CAS CATO-C4X-102947)
- Clopidogrel Impurity 56 (CAS 1346605-15-9)
- (±)-Clopidogrel-(<I>phenyl</I>-<SUP>13</SUP>C<SUB>6</SUB>) (CAS 1619981-08-6)
Recommended Standards
- tert-Butyl 5-chlorospiro[indole-3,4'-piperidine]-1'-carboxylate (CAS 637362-20-0)
- Sarpogrelate Impurity 7 (CAS CATO-C4X-29137)
- tert-Butyl 4-(4-chlorophenyl)-4-cyanopiperidine-1-carboxylate (CAS 218451-34-4)
- tert-Butyl ((2S,4R)-1-azido-7-chloro-4-(hydroxymethyl)heptan-2-yl)carbamate (CAS 1013937-97-7)
- Ibrutinib Impurity 120 (CAS CATO-C4X-1064120)
- (S)-Prothioconazole Impurity N1 (CAS 4819-36-7)
- Ibrutinib Impurity 136 (CAS 2190506-59-1)
- 5'-O-Dimethoxytrityl-N4-Benzoyl-cytidine (CAS 41092-41-5)
- (5-Bromopyridin-3-yl)methanol hydrochloride (CAS 22620-36-6)
- N-(5,6-dimethyl-1-(2-methylbenzyl)-1H-benzo[d]imidazol-4-yl)-4-methoxybenzenesulfonamide (CAS 338954-55-5)
- 5-(Chloromethyl)pyrazine-2-carbonitrile (CAS 1211526-07-6)
- 5-Bromo-2-hydroxy-3-methylbenzyl alcohol (CAS 77691-33-9)
- 2,6-Difluoro-N-((1-(thiophen-2-yl)cyclopentyl)methyl)benzamide (CAS 1058459-28-1)
- Neuropeptide Y (22-36) (CAS 119019-65-7)
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