Piribedil Impurity 2 CAS CATO-C4X-28132
| CAS No. | CATO-C4X-28132 |
| Molecular Formula | C7H7ClO2 |
| Molecular Weight | 158.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 158.58 g/mol gives Piribedil Impurity 2 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Piribedil Impurity 2 (CAS CATO-C4X-28132, C7H7ClO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Piribedil Impurity 2 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 158.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Piribedil Impurity 2 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 | C7H7ClO2 |
| Molecular Weight | 158.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Piribedil Standards
- Piribedil Impurity 3 (CAS CATO-C4X-28133)
- Piribedil Impurity N1 (CAS 75875-58-0)
- Piribedil Impurity N3 (CAS 129111-11-1)
- Piribedil Impurity 18 (CAS CATO-C4X-281318)
- Piribedil Impurity 20 (CAS 123492-93-3)
- Piribedil Impurity N3 (CAS 931-63-5)
- Piribedil Impurity 4 (CAS CATO-C4X-28134)
- Piribedil Impurity 24 (CAS 1109275-97-9)
Recommended Standards
- 6-(Chloromethyl)-4-methyl-2H-pyran-2-one (CAS 4394-75-6)
- 5-Chloro-2-methoxyphenol (CAS 3743-23-5)
- 4-Chloroguaiacol (CAS 16766-30-6)
- 5-Chloro-2-(hydroxymethyl)phenol (CAS 64917-81-3)
- Donepezil Impurity 19 (CAS CATO-C4X-103919)
- Tiamulin EP Impurity T Fumarate (CAS CATO-C4X-22105)
- Opicapone impurity 63 (CAS CATO-C4X-240463)
- 7-Chloro-2-oxo-2H-chromene-4-carbaldehyde (CAS 709640-75-5)
- 1-(3-Chloro-4-fluorophenyl)piperazine dihydrochloride (CAS 827614-46-0)
- (R)-2-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-3-aminopropanoic acid hydrochloride (CAS 487027-89-4)
- tert-Butyl (R)-3-(2,4,6-trimethylbenzyl)piperazine-1-carboxylate (CAS 1260611-96-8)
- N-(2,3-dichlorophenyl)-2-((4,6-dimethylpyrimidin-2-yl)thio)acetamide (CAS 303091-21-6)
- N-Hydroxydodecanamide (CAS 10335-68-9)
- Semaglutide impurity 199 (CAS CATO-C4X-2226199)
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