Bilastine Impurity 128 CAS CATO-C4X-2253128
| CAS No. | CATO-C4X-2253128 |
| Molecular Formula | C34H47N5O3 |
| Molecular Weight | 573.77 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Bilastine Impurity 128.
Bilastine Impurity 128 (CAS CATO-C4X-2253128) is a certified pharmaceutical impurity reference standard with the molecular formula C34H47N5O3 and a molecular weight of 573.77 g/mol.
The molecular framework of Bilastine Impurity 128 (C34H47N5O3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 128 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 | C34H47N5O3 |
| Molecular Weight | 573.77 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Bilastine Standards
- Bilastine Impurity 76 (CAS CATO-C4X-225376)
- Bilastine Impurity 16 (CAS 2411093-91-7)
- Bilastine Impurity 51 (CAS 2767509-03-3)
- Bilastine Impurity 47 (CAS CATO-C4X-225347)
- Bilastine Impurity 69 (CAS CATO-C4X-225369)
- Bilastine Impurity 17 (CAS 2767509-00-0)
- Bilastine Impurity 4 (CAS 2761921-47-3)
- Bilastine Impurity 68 (CAS CATO-C4X-225368)
Recommended Standards
- Maraviroc RC4 (CAS 1391047-98-5)
- Yibeinoside A (CAS 98985-24-1)
- Cycloposine (CAS 23185-94-6)
- Methyl rel-(E)-7-[5-tert-Butyldimethylsilyloxymethyl-2,6-diisopropyl-4- (4-fluorophenyl)-pyrid-3-yl]-3,5-dihydroxy-6-heptenoate (CAS 124863-86-1)
- Ioversol Impurity 25 (CAS CATO-C4X-209125)
- Finerenone Impurity 42 (CAS CATO-C4X-288042)
- Nimesulide EP Impurity C (CAS 2688-84-8)
- 4-({[(4-acetylphenyl)sulfonyl]amino}methyl)benzoic acid (CAS 794559-16-3)
- Ethyl 2-(1-aminocyclohexyl)acetate hydrochloride (CAS 945419-82-9)
- Bis(1-phenyl-1,3-pentanedionato)copper (CAS 15443-06-8)
- tert-Butyl (7-bromo-2-hydroxynaphthalen-1-yl)carbamate (CAS 2756525-68-3)
- 5-Acetylamino-6-amino-3-methyluracil Hydrate (CAS 1196153-01-1)
- 2-((1-Phenyl-1H-tetrazol-5-yl)thio)-N-(2,4,5-trifluorophenyl)acetamide (CAS 882749-63-5)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
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