Betaxolol Impurity 18 CAS CATO-C4X-155918
| CAS No. | CATO-C4X-155918 |
| Molecular Formula | C11H16O4 |
| Molecular Weight | 212.24 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Betaxolol Impurity 18 (C11H16O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; 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).
CATO supplies Betaxolol Impurity 18 (CAS CATO-C4X-155918), a pharmacopoeial impurity reference standard (molecular formula C11H16O4, MW 212.24 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
CATO manufactures Betaxolol Impurity 18 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.
Physical & Chemical Properties
| Molecular Formula | C11H16O4 |
| Molecular Weight | 212.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Betaxolol Standards
- Betaxolol Impurity 13 (CAS CATO-C4X-155913)
- Betaxolol EP Impurity D (CAS 63659-16-5)
- Betaxolol EP Impurity A (CAS 67193-95-7)
- Betaxolol Impurity 19 (CAS CATO-C4X-155919)
- Betaxolol Impurity 12 (CAS CATO-C4X-155912)
- Betaxolol EP Impurity C (CAS 63659-17-6)
- Betaxolol Impurity 9 (CAS 131564-69-7)
- Betaxolol Impurity 16 (CAS CATO-C4X-155916)
Recommended Standards
- Ketoprofen Impurity 47 (CAS 620-86-0)
- Safinamide Impurity 20 (CAS 4397-53-9)
- Flurbiprofen Impurity 162 (CAS 861795-19-9)
- Oseltamivir Impurity 286 (CAS CATO-C4X-1720286)
- Sodium carbosulfonate Impurity 31 (CAS CATO-C4X-229131)
- Cloxacillin Impurity 22 (CAS CATO-C4X-159722)
- Pitavastatin Impurity 18 (CAS CATO-C4X-103718)
- 3-Iodo-2,2-dimethylpropan-1-ol (CAS 51916-34-8)
- (4-(Trifluoromethoxy)cyclohexyl)methanamine (CAS 2231675-28-6)
- 3-(Dodecylthio)propanoic acid (CAS 1462-52-8)
- 1-Benzyl-4-(3-phenylpropyl)piperidin-4-ol (CAS 70152-26-0)
- Ethyl 2,3,4-trifluorobenzoate (CAS 351354-50-2)
- 5-Bromo-1-(tert-butyl)-N-methoxy-N-methyl-1H-pyrazole-4-carboxamide (CAS 98534-14-6)
- Semaglutide impurity 103 (CAS 1446013-07-5)
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