Salbutamol Impurity 183 CAS CATO-C4X-1176183
| CAS No. | CATO-C4X-1176183 |
| Molecular Formula | C11H11BrO4 |
| Molecular Weight | 287.11 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Salbutamol Impurity 183 (CAS CATO-C4X-1176183), a pharmacopoeial impurity reference standard (molecular formula C11H11BrO4, MW 287.11 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C11H11BrO4, Salbutamol Impurity 183 contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 287.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C11H11BrO4 |
| Molecular Weight | 287.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | ＞95% |
| Storage | Store at 2-8°C, protect from light, 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; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
Related Salbutamol Standards
- Salbutamol Impurity 220 (CAS CATO-C4X-1176220)
- Salbutamol Impurity 79 (CAS CATO-C4X-117679)
- Salbutamol Impurity 106 (CAS CATO-C4X-1176106)
- Salbutamol Impurity 223 (CAS CATO-C4X-1176223)
- Salbutamol Impurity 99 (CAS 27475-09-8)
- Salbutamol Impurity 64 (CAS CATO-C4X-117664)
- Salbutamol Impurity 58 (CAS CATO-C4X-117658)
- Salbutamol Impurity 53 (CAS 54208-72-9)
Recommended Standards
- Macitentan Impurity 10 (CAS 149506-35-4)
- Linezolid Impurity 57 (CAS 477846-96-1)
- 401640-94-6 2-Bromo-N-(4-nitrophenyl)butanamide MFCD03014456 (CAS 401640-94-6)
- Crisaborole lmpurity 77 (CAS CATO-C4X-202177)
- Relugolix Impurity 51 (CAS CATO-C4X-242951)
- Vitamin impurity 52 (CAS 59057-11-3)
- Cefoperazone Impurity 27 (CAS CATO-C4X-114927)
- Trans-1-benzylpyrrolidine-3,4-dicarbonitrile (CAS 87813-02-3)
- DL-Glyceraldehyde-1,2,3- (CAS 478529-56-5)
- N-(2-(Thiophene-2-carbonyl)hydrazine-1-carbonothioyl)benzamide (CAS 448929-00-8)
- ethyl 5-bromoimidazo[1,2-a]pyridine-2-carboxylate (CAS 1332589-39-5)
- methyl 2-chloro-8-methoxy-9H-pyrido[2,3-b]indole-6-carboxylate (CAS 2641336-36-7)
- 6-Methyl-[1,2,4]triazolo[4,3-b]pyridazin-8-yl 4-methylbenzoate (CAS 478046-06-9)
- Insulin Degludec Impurity 11 (CAS CATO-C4X-215711)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com