Tropicamide EP Impurity A CAS CATO-C4X-21504
| CAS No. | CATO-C4X-21504 |
| Molecular Formula | C7H8O3S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Tropicamide EP Impurity A (CAS CATO-C4X-21504, C7H8O3SC8H12N2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Tropicamide EP Impurity A (C7H8O3SC8H12N2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
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.
CATO manufactures Tropicamide EP Impurity A 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.
Physical & Chemical Properties
| Molecular Formula | C7H8O3S C8H12N2 |
| Molecular Weight | 308.40 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Tropicamide Standards
- Tropicamide Impurity 11 (CAS 101112-51-0)
- Tropicamide Impurity 16 (CAS 1184914-87-1)
- Tropicamide (CAS 1508-75-4)
- Tropicamide Impurity 20 (CAS 2727060-69-5)
- Tropicamide EP Impurity A (CAS 33403-97-3)
- Tropicamide Impurity 14 (CAS 50550-65-7)
- Tropicamide EP Impurity B (CAS 57322-50-6)
- Tropicamide Impurity 21 (CAS 96392-48-2)
Recommended Standards
- Cefathiamidine Impurity 10 (CAS CATO-C4X-133710)
- Aprepitant Impurity 2 (CAS 1185502-97-9)
- Roxadustat Impurity 43 (CAS CATO-C4X-221343)
- Amorolfine Impurity 37 (CAS CATO-C4X-154237)
- 2-(1H-pyrazol-1-yl)thiazole-4-carboxylic acid (CAS 1437312-14-5)
- N-(2-Cyano-3-methylbutan-2-yl)-2-((4-(2-isopropylphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 784188-33-6)
- 4-Chloro-N,N-diethyl-1-butanamine Hydrochloride (CAS 108130-45-6)
- 5-Chloro-2-methoxy-1,3-dinitrobenzene (CAS 6302-58-5)
- 4-(4-Bromophenyl)-N-(2-chlorophenyl)-1,3-thiazol-2-amine (CAS 312604-48-1)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
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