Meclofenoxate Impurity 2 CAS 4841-22-9
| CAS No. | 4841-22-9 |
| Molecular Formula | C9H9ClO3 |
| Molecular Weight | 200.62 g/mol |
| 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 Meclofenoxate Impurity 2.
CATO supplies Meclofenoxate Impurity 2 (CAS 4841-22-9), a pharmacopoeial impurity reference standard (molecular formula C9H9ClO3, MW 200.62 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C9H9ClO3, Meclofenoxate Impurity 2 contains a carboxylic acid 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 200.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Meclofenoxate 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 | C9H9ClO3 |
| Molecular Weight | 200.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Related Meclofenoxate Standards
- Meclofenoxate Impurity 1 (CAS 14426-42-7)
- Meclofenoxate Impurity 10 (CAS 41944-93-8)
- Meclofenoxate Impurity 7 (CAS 2130-69-0)
- Meclofenoxate Impurity 3 (CAS CATO-C4X-24693)
- Meclofenoxate Impurity 5 (CAS CATO-C4X-24695)
- Meclofenoxate Impurity 6 (CAS CATO-C4X-24696)
- Meclofenoxate Impurity 4 (CAS CATO-C4X-24694)
- Meclofenoxate Impurity 8 (CAS CATO-C4X-24698)
Recommended Standards
- Lenvatinib Impurity 110 (CAS CATO-C4X-1140110)
- Cloprop (CAS 101-10-0)
- Esomeprazole Impurity 47 (CAS 153476-68-7)
- Mcpa (CAS 94-74-6)
- Trazodone Impurity 31 (CAS CATO-C4X-177231)
- Cefpirome Impurity 32 (CAS CATO-C4X-120732)
- Tofacitinib Impurity 47 (CAS CATO-C4X-107947)
- 5,6-Dimethyl-2-(5-methylthiophen-2-yl)pyrimidin-4-amine (CAS 1249961-08-7)
- Vildagliptin Impurity 8 (CAS 204387-53-1)
- 6-(5-Bromothiophen-2-yl)-2-thioxo-2,3-dihydropyrimidin-4(1H)-one (CAS 1485644-56-1)
- Cloransulam-Methyl Impurity 9 (CAS CATO-C4X-31709)
- tert-Butyl 2-bromophenethylcarbamate (CAS 171663-06-2)
- 6,7-Dihydro-5H-pyrrolo[3,4-d]pyrimidine (CAS 53493-80-4)
- Semaglutide impurity 247 (CAS CATO-C4X-2226247)
Why CATO?
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