Emedastine Impurity 33 CAS CATO-C4X-226733
| CAS No. | CATO-C4X-226733 |
| Molecular Formula | C15H22N6O3 |
| Molecular Weight | 334.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Emedastine Impurity 33 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.
CATO supplies Emedastine Impurity 33 (CAS CATO-C4X-226733), a pharmacopoeial impurity reference standard (molecular formula C15H22N6O3, MW 334.37 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Emedastine Impurity 33 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 334.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C15H22N6O3 |
| Molecular Weight | 334.37 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 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
Related Emedastine Standards
- Emedastine Impurity 48 (CAS CATO-C4X-226748)
- Emedastine Impurity 11 (CAS CATO-C4X-226711)
- Emedastine N-Oxide (CAS 122484-65-5)
- Emedastine Impurity 30 (CAS CATO-C4X-226730)
- Emedastine lmpurity 27 (CAS CATO-C4X-226727)
- Emedastine lmpurity 21 (CAS CATO-C4X-226721)
- Emedastine Impurity 31 (CAS CATO-C4X-226731)
- Emedastine Impurity 32 (CAS CATO-C4X-226732)
Recommended Standards
- Spectinomycin EP Impurity F (CAS 1323437-06-4)
- Pimobendam (CAS 74150-27-9)
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- Milnacipran impurity 28 (CAS 136090-97-6)
- Tenofovir alafenamide impurity 83 (CAS 2126010-02-2(free base))
- Netupitant Impurity 13 (CAS CATO-C4X-122313)
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- N-(3-Methylisothiazol-5-yl)-4-nitro-1H-pyrrole-2-carboxamide (CAS 478493-09-3)
- Axitinib-13C-d3 (CAS 1261432-00-1)
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- 1-(2,5-Dimethylfuran-3-yl)-2,2,2-trifluoroethan-1-amine (CAS 1270360-84-3)
- 3-Iodo-1H-pyrazolo[3,4-c]pyridine (CAS 1082040-63-8)
- Des-Gly34-Tirzepatide (CAS CATO-CPTD788940)
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