Bepotastine Impurity 23 CAS 1415692-17-9
| CAS No. | 1415692-17-9 |
| Molecular Formula | C21H25ClN2O3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Bepotastine Impurity 23 (CAS 1415692-17-9), a pharmacopoeial impurity reference standard (molecular formula C21H25ClN2O3C6H6O3S, MW 547.06 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Bepotastine Impurity 23 (C21H25ClN2O3C6H6O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 547.06 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a certified reference material (CRM), Bepotastine Impurity 23 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 | C21H25ClN2O3 C6H6O3S |
| Molecular Weight | 547.06 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Bepotastine Standards
- Bepotastine Impurity 11 (CAS 1039957-36-2)
- Bepotastine Impurity 28 (CAS 1153149-80-4)
- Bepotastine Impurity 26 (CAS 1154238-49-9)
- Bepotastine (CAS 125602-71-3)
- Bepotastine Impurity 24 (CAS 1807607-93-7)
- Bepotastine Ethyl Ester (CAS 190730-39-3)
- Bepotastine Besilate (CAS 190786-44-8)
- Bepotastine Impurity 14 (CAS 207726-35-0)
Recommended Standards
- Etelcalcetide Impurity 27 X TFA Salt (CAS CATO-C4X-324727)
- Vortioxetine Impurity 139 (CAS CATO-C4X-1056139)
- Mirogabalin Impurity N59 (CAS 1415817-43-4)
- L-Idonic acid, γ-lactone (CAS 1128-24-1)
- Finerenone Impurity 38 (CAS CATO-C4X-288038)
- 2-Methoxy-4-nitrobenzenesulfonyl fluoride (CAS 21320-94-5)
- tert-Butyl (cis-4-(2-hydroxyethyl)cyclohexyl)carbamate (CAS 1069120-19-9)
- (3,5-Dimethyl-1-phenyl-1h-pyrazol-4-yl)methanamine (CAS 400877-11-4)
- (5-m-Tolyl-[1,2,4]oxadiazol-3-yl)-acetic acid ethyl ester (CAS 1192974-61-0)
- Tirzepatide Impurity 20 (CAS CATO-C4X-324020)
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