Carebastine Methyl Ester CAS 189064-48-0
| CAS No. | 189064-48-0 |
| Molecular Formula | C33H39NO4 |
| Molecular Weight | 513.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies Carebastine Methyl Ester (CAS 189064-48-0), a certified reference material (molecular formula C33H39NO4, MW 513.67 g/mol) for analytical method development and quality control.
Carebastine Methyl Ester (C33H39NO4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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 manufactures Carebastine Methyl Ester 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 | C33H39NO4 |
| Molecular Weight | 513.67 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2011 |
| Nitrogen Atoms | 1 |
Related Carebastine Standards
- Carebastine Impurity 3 (CAS CATO-C4X-31693)
- Carebastine-d5 Methyl Ester (CAS 1190019-51-2)
- Carebastine-D5 (CAS 1189661-02-6)
- Carebastine (CAS 90729-42-3)
- Carebastine Impurity 7 (CAS CATO-C4X-31697)
- Carebastine Impurity 5 (CAS CATO-C4X-31695)
- Carebastine Impurity 9 (CAS CATO-C4X-31699)
- Carebastine Impurity 1 (CAS CATO-C4X-31691)
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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