Pralidoxime Chloride Impurity 5 CAS 3313-51-7
| CAS No. | 3313-51-7 |
| Molecular Formula | I |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Pralidoxime Chloride Impurity 5.
As a process- or degradation-related impurity, Pralidoxime Chloride Impurity 5 (CAS 3313-51-7, IC7H10NO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to an amide group, a hydroxyl group, an ether linkage, iodine substitution, Pralidoxime Chloride Impurity 5 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 251.06 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Pralidoxime Chloride Impurity 5 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.
Physical & Chemical Properties
| Molecular Formula | I C7H10NO |
| Molecular Weight | 251.06 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 1 |
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 11 (CAS 21032-31-5)
- 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
- Trimetazidine Impurity 22 (CAS 86-81-7)
- Telmisartan Impurity 9 (CAS 884330-14-7)
- Palonosetron Impurity 24 (CAS 177793-79-2)
- Tert-butyl 7-chloro-3,4-dihydro-2,6-naphthyridine-2(1H)-carboxylate (CAS 1060816-50-3)
- 3-Fluoro-n-methylpyridin-2-amine (CAS 220714-69-2)
- 4-(4-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)piperazin-1-yl)benzamide (CAS 338979-27-4)
- 1-(3-Piperidinylmethyl)azepane dihydrochloride (CAS 1211495-72-5)
- 8-Chloro-3-methylquinazolin-4(3H)-one (CAS 4822-75-7)
- 1-Ethynyl-2-iodobenzene (CAS 766-50-7)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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