Salbutamol Impurity 156 CAS CATO-C4X-1176156
| CAS No. | CATO-C4X-1176156 |
| Molecular Formula | C9H8BrClO2 |
| Molecular Weight | 263.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Salbutamol Impurity 156 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Salbutamol Impurity 156 (CAS CATO-C4X-1176156) is a certified pharmaceutical impurity reference standard with the molecular formula C9H8BrClO2 and a molecular weight of 263.52 g/mol.
The molecular framework of Salbutamol Impurity 156 (C9H8BrClO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C9H8BrClO2 |
| Molecular Weight | 263.52 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at room temperature, 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl/Br-containing |
Related Salbutamol Standards
- Salbutamol Impurity 97 (CAS 53942-75-9)
- Salbutamol Impurity 81 (CAS CATO-C4X-1176181)
- Salbutamol impurity 91 (CAS CATO-C4X-1176191)
- Salbutamol Impurity 104 (CAS 27566-09-2)
- Salbutamol Impurity 202 (CAS CATO-C4X-1176202)
- Salbutamol Impurity 21 (CAS 2387728-91-6)
- Salbutamol Impurity 63 (CAS CATO-C4X-117663)
- Salbutamol Impurity 9 (CAS 754926-25-5)
Recommended Standards
- α-Bromo-2-chlorophenylacetic Acid Methyl Ester (CAS 85259-19-4)
- 2-Chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (CAS 1165935-87-4)
- methyl 2-bromo-2-(2-chlorophenyl)acetate (CAS 25270-30-2)
- 3-Chloro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile (CAS 1212021-11-8)
- Ilaprazole Impurity 213 (CAS CATO-C4X-1130213)
- Cefdinir Impurity 6 (CAS 79350-14-4)
- Theophylline Impurity 11 (CAS CATO-C4X-182311)
- 3-Hydroxy-3-(naphthalen-2-yl)propanenitrile (CAS 128104-67-6)
- N-(5-(tert-Butyl)-4-((6-cyclopentyl-4-hydroxy-6-(4-hydroxyphenethyl)-2-oxo-5,6-dihydro-2H-pyran-3-yl)thio)-2-methylphenyl)benzenesulfonamide (CAS 263842-68-8)
- Sodium 2,3,5,6-tetrafluoro-4-sulfophenolate (CAS 221908-17-4)
- 3-Iodo-2-methylbenzoic acid (CAS 133232-56-1)
- 8-Methyl-4-oxo[1]benzopyrano[4,3-c]pyrazole-1(4H)-acetic acid (CAS 1284054-92-7)
- DPN-205-734 (CAS 88594-78-9)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
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