Bilastine Impurity 41 CAS 2761944-43-6
| CAS No. | 2761944-43-6 |
| Molecular Formula | C13H17ClO3 |
| Molecular Weight | 256.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 256.73 g/mol gives Bilastine Impurity 41 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Bilastine Impurity 41 (CAS 2761944-43-6), a pharmacopoeial impurity reference standard (molecular formula C13H17ClO3, MW 256.73 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Bilastine Impurity 41 (C13H17ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 256.73 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 Bilastine Impurity 41 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 | C13H17ClO3 |
| Molecular Weight | 256.73 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2003 |
| Halogen Content | Cl-containing |
Related Bilastine Standards
- Bilastine Impurity 10 (CAS 1638785-19-9)
- Bilastine impurity 103 (CAS CATO-C4X-2253103)
- Bilastine Impurity 43 (CAS CATO-C4X-225343)
- Bilastine impurity 104 (CAS 1368721-60-1)
- Bilastine Impurity 26 (CAS 361382-26-5)
- Bilastine impurity 58 (CAS CATO-C4X-225358)
- Bilastine impurity 59 (CAS CATO-C4X-225359)
- Bilastine impurity 135 (CAS CATO-C4X-2253135)
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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