Bepotastine Impurity 28 CAS 1153149-80-4
| CAS No. | 1153149-80-4 |
| Molecular Formula | C14H16ClNO5 |
| Molecular Weight | 313.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Bepotastine Impurity 28 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.
Bepotastine Impurity 28 (CAS 1153149-80-4) is a certified pharmaceutical impurity reference standard with the molecular formula C14H16ClNO5 and a molecular weight of 313.73 g/mol.
Structurally, Bepotastine Impurity 28 (C14H16ClNO5) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 313.73 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C14H16ClNO5 |
| Molecular Weight | 313.73 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 |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Bepotastine Standards
- Bepotastine Impurity 26 (CAS 1154238-49-9)
- Bepotastine Impurity 25 (CAS CATO-C4X-183925)
- Bepotastine Impurity 13 (CAS CATO-C4X-183913)
- Bepotastine Impurity 32 (CAS CATO-C4X-183932)
- Bepotastine Impurity 18 (CAS CATO-C4X-183918)
- Bepotastine Impurity A-D5 N-nitroso (CAS CATO-C4X-183931)
- Bepotastine Impurity 12 (CAS CATO-C4X-183912)
- Bepotastine Impurity 5 (CAS CATO-C4X-18395)
Recommended Standards
- 2-(2-(3-(3-Chlorophenyl)isoxazol-5-yl)phenyl)acetic acid (CAS 105803-73-4)
- Posaconazole Impurity 166 (CAS 1631169-28-2)
- N-(4-Chlorophenyl)-2-(4-oxoquinazolin-3(4H)-yl)acetamide (CAS 108086-47-1)
- Diethyl 2-(4-Chlorobenzamido)malonate (CAS 81918-01-6)
- Nebivolol EP Impurity D (CAS CATO-C4X-196849)
- Roxadustat Impurity 38 (CAS CATO-C4X-221338)
- Caspofungin Impurity 20 (CAS CATO-C4X-157520)
- 3-Bromo-1-(triisopropylsilyl)-1H-pyrrolo[2,3-b]pyridine (CAS 918525-02-7)
- 4-(4-Bromophenyl)-1-methyl-3,6-dihydro-2H-pyridine (CAS 180912-08-7)
- 1-Amino-2-(2-fluoro-5-methylphenyl)propan-2-ol (CAS 1478586-91-2)
- Methyl 2-methyl-5-phenethyloxazole-4-carboxylate (CAS 62001-69-8)
- N2-Methylguanosine (CAS 2140-77-4)
- 2-(3-Fluorophenyl)-2-oxoacetic acid (CAS 79477-87-5)
- Semaglutide impurity 235 (CAS CATO-C4X-2226235)
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