Trospium Impurity 5 CAS CATO-C4X-20385
| CAS No. | CATO-C4X-20385 |
| Molecular Formula | C21H23NO3 |
| Molecular Weight | 337.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Trospium Impurity 5 (C21H23NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies Trospium Impurity 5 (CAS CATO-C4X-20385), a pharmacopoeial impurity reference standard (molecular formula C21H23NO3, MW 337.41 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Trospium Impurity 5 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 | C21H23NO3 |
| Molecular Weight | 337.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Trospium Standards
- Trospium Impurity N2 (CAS 16444-19-2)
- Trospium Impurity 9 (CAS CATO-C4X-20389)
- Trospium Impurity 14 (CAS CATO-C4X-203814)
- Trospium Impurity 12 (CAS CATO-C4X-203812)
- Trospium Impurity 4 (Benzilide) (CAS 467-32-3)
- Trospium Impurity 6 (CAS CATO-C4X-20386)
- Trospium Impurity 17 (CAS CATO-C4X-203817)
- Trospium Impurity 18 (CAS CATO-C4X-203818)
Recommended Standards
- Fulvestrant Impurity 10 (CAS 149051-24-1)
- Epalrestat impurity 36 (CAS CATO-C4X-223636)
- Esmolol Impurity 88 (CAS CATO-C4X-189188)
- Boc-D-Tyr (Et) -OEt (CAS 561041-98-3)
- Voriconazole Impurity 47 (CAS CATO-C4X-136647)
- Pemetrexed Impurity 11 (CAS 778-29-0)
- Elagolix Impurity 39 (CAS 295376-21-5)
- 2-(Thiomorpholine-4-carbonyl)benzoic acid (CAS 1042801-04-6)
- 4-(Mercapto(phenyl)methyl)phenol (CAS 1038981-79-1)
- 4-Fluorobicyclo[2.1.1]Hexan-1-amine hydrochloride (CAS 2108573-97-1)
- 4-(2,2,2-Trifluoroacetyl)-3,4-dihydro-2H-benzo[b][1,4]thiazine-7-carboxylic acid (CAS 1936141-87-5)
- (S)-cyclohexyl(4-prolylpiperazin-1-yl)methanone (CAS 1218608-84-4)
- Cyclo(-Asp(OMe)-Asp(OMe)) (G-1685.0250) (CAS 193287-70-6)
- T-Peptide (CAS 2022956-62-1)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com