Bilastine impurity 81 CAS CATO-C4X-225381
| CAS No. | CATO-C4X-225381 |
| Molecular Formula | C19H27N3O3 |
| Molecular Weight | 345.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Bilastine impurity 81 is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Bilastine impurity 81 (CAS CATO-C4X-225381) is a certified pharmaceutical impurity reference standard with the molecular formula C19H27N3O3 and a molecular weight of 345.44 g/mol.
Bilastine impurity 81 (C19H27N3O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Bilastine impurity 81 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 | C19H27N3O3 |
| Molecular Weight | 345.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Bilastine Standards
- Bilastine Impurity 102 (CAS 2199440-17-8)
- Bilastine Impurity 31 (CAS 2818982-86-2)
- Bilastine Impurity 71 (CAS CATO-C4X-225371)
- Bilastine Impurity 72 (CAS CATO-C4X-225372)
- Bilastine Impurity 61 (CAS 2890196-78-6)
- Bilastine impurity 105 (CAS 2052955-68-5)
- Bilastine Impurity 38 (CAS 883106-63-6)
- Bilastine Boc Impurity 32 (CAS 1181267-36-6)
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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