Bilastine impurity 79 CAS 2199440-15-6
| CAS No. | 2199440-15-6 |
| Molecular Formula | C12H13ClO3 |
| Molecular Weight | 240.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Bilastine impurity 79 (CAS 2199440-15-6) is a certified pharmaceutical impurity reference standard with the molecular formula C12H13ClO3 and a molecular weight of 240.68 g/mol.
Structurally, Bilastine impurity 79 (C12H13ClO3) 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 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 240.68 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Bilastine impurity 79 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H13ClO3 |
| Molecular Weight | 240.68 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, 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; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Halogen Content | Cl-containing |
Related Bilastine Standards
- Bilastine Impurity 11 (CAS 1181267-33-3)
- Bilastine impurity 91 (CAS 2245209-60-1)
- Bilastine impurity 93 (CAS CATO-C4X-225393)
- Bilastine impurity 89 (CAS CATO-C4X-225389)
- Bilastine impurity 85 (CAS CATO-C4X-225385)
- Bilastine impurity 135 (CAS CATO-C4X-2253135)
- Bilastine Impurity 40 (CAS 2199440-16-7)
- Bilastine impurity 90 (CAS CATO-C4X-225390)
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