Ambroxol Impurity 18 CAS 953039-29-7
| CAS No. | 953039-29-7 |
| Molecular Formula | C7H7BrClNO |
| Molecular Weight | 236.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Ambroxol Impurity 18 (CAS 953039-29-7), molecular formula C7H7BrClNO and molecular weight 236.49 g/mol, is a CATO reference standard with documented purity and traceability.
Ambroxol Impurity 18 (C7H7BrClNO) contains an amide group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H7BrClNO |
| Molecular Weight | 236.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Ambroxol Standards
- Ambroxol Impurity 7 (CAS 15942-11-7)
- Ambroxol impurity 61 (CAS 104670-74-8)
- Ambroxol Impurity 44 (CAS 882772-99-8)
- Ambroxol Impurity 81 (CAS CATO-C4X-108581)
- Ambroxol Impurity N1 (CAS 46727-91-7)
- Ambroxol Impurity 84 (CAS CATO-C4X-108584)
- Ambroxol Impurity 100 (CAS 1631131-54-8)
- Ambroxol Impurity 52 (CAS 946122-05-0)
Recommended Standards
- 5-Bromo-4-chloro-3-methoxy-2-methylpyridine (CAS 71001-58-6)
- 5-Bromo-4-chloro-6-ethylpyrimidin-2-amine (CAS 1260837-10-2)
- 5-bromo-3-(chloromethyl)-2-methoxypyridine (CAS 351410-54-3)
- 5-Bromo-6-chloro-N,N-dimethylpyrazin-2-amine (CAS 1379316-06-9)
- 2-Chloro-N-(2-cyanoethyl)-N-(3-(trifluoromethyl)phenyl)acetamide (CAS 726151-31-1)
- N,N′-Bis(4-fluorophenyl)thiourea (CAS 404-52-4)
- 1-methylcyclohexane-1,3-dicarboxylic acid (CAS 1822602-84-5)
- 2-Methyl-4-pyrrolidinomethyl benzophenone (CAS 898775-91-2)
- ethyl 1-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]methyl}-1H-1,2,3,4-tetraazole-5-carboxylate (CAS 1092346-51-4)
- 1-amino-2-(2-methoxyphenyl)propan-2-ol (CAS 933721-49-4)
- (4-(Difluoromethyl)-2-iodo-6-(trifluoromethoxy)pyridin-3-yl)methanol (CAS 1804743-97-2)
- 3-Phenoxyisoxazole (CAS 342617-04-3)
- 4-(1-(4-Bromophenyl)-1-phenylbut-3-yn-1-yl)-4H-1,2,4-triazole (CAS 88557-72-6)
- Semaglutide impurity 272 (CAS CATO-C4X-2226272)
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