Pralidoxime Chloride Impurity 11 CAS 21032-31-5
| CAS No. | 21032-31-5 |
| Molecular Formula | C7H9N2O |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H9N2OCl, Pralidoxime Chloride Impurity 11 contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 172.61 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a process- or degradation-related impurity, Pralidoxime Chloride Impurity 11 (CAS 21032-31-5, C7H9N2OCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 Pralidoxime Chloride Impurity 11 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 | C7H9N2O Cl |
| Molecular Weight | 172.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Pralidoxime Standards
- Pralidoxime Methyl Sulphate (CAS 1200-55-1)
- (Z)-Pralidoxime Chloride (CAS 13698-37-8)
- (E)-Pralidoxime Chloride (CAS 14018-50-9)
- Pralidoxime Chloride Impurity 5 (CAS 3313-51-7)
- Pralidoxime Chloride Impurity 1 (CAS 3697-38-9)
- Pralidoxime Chloride Impurity 4 (CAS 3784-97-2)
- Pralidoxime Chloride Impurity 6 (CAS 3785-03-3)
- Pralidoxime Chloride Impurity 10 (CAS 45750-74-1)
Recommended Standards
- Relugolix Impurity 175 (CAS CATO-C4X-2429175)
- Cefalotin Impurity 6 (CAS 35565-06-1)
- Vaborbactam Impurity 9 (CAS CATO-C4X-34779)
- 3-Benzyl-5-(1-(pyrrolidin-1-ylmethyl)-1H-indol-3-yl)-1,2,4-oxadiazole (CAS 1807542-84-2)
- 1-(Methylamino)isoquinoline (CAS 46000-11-7)
- Ethyl 5-methyl-2-(4-(trifluoromethyl)phenyl)-2h-1,2,3-triazole-4-carboxylate (CAS 870788-48-0)
- N-(2-chlorophenyl)-2-(methylamino)benzamide (CAS 66953-64-8)
- 2-{[5-(4-tert-butylphenyl)-1,3,4-oxadiazol-2-yl]sulfanyl}propanamide (CAS 878925-51-0)
- Methyl N-(3-chloro-2-methylphenyl)-N-(methylsulfonyl)glycinate (CAS 333451-86-8)
- Epidermal Growth Factor Receptor Peptide (985-996) (CAS 96249-43-3)
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