Baclofen impurity 19 CAS 940-62-5
| CAS No. | 940-62-5 |
| Molecular Formula | C9H7ClO2 |
| Molecular Weight | 182.60 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 182.60 g/mol gives Baclofen impurity 19 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Baclofen impurity 19 (CAS 940-62-5), a pharmacopoeial impurity reference standard (molecular formula C9H7ClO2, MW 182.60 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C9H7ClO2, Baclofen impurity 19 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 182.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C9H7ClO2 |
| Molecular Weight | 182.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Baclofen Standards
Recommended Standards
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- 252004-45-8 4-chloranyl-2,6-bis(fluoranyl)benzaldehyde 4-chloro-2,6-difluorobenzaldehyde A817702 (CAS 252004-45-8)
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- Lercanidipine Impurity 29 (CAS CATO-C4X-136429)
- methyl 3-(4-fluorophenyl)-2-methoxypropanoate (CAS 2044722-98-5)
- 2,2,2-Trifluoro-1-(4-methyl-3-(pentyloxy)phenyl)ethan-1-one (CAS 1443344-68-0)
- 4-(Naphthalen-2-yl)butan-1-amine (CAS 2017-60-9)
- Imiquimod Impurity 9 (CAS 23432-46-4)
- Sodium 2-(1-methylguanidino)ethyl phosphate (CAS 6903-80-6)
- Magnesium Porphyrin (CAS 13007-95-9)
- Neuropeptide FF (CAS 99566-27-5)
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