Esmolol Impurity 67 CAS CATO-C4X-189167
| CAS No. | CATO-C4X-189167 |
| Molecular Formula | C13H16O4 |
| Molecular Weight | 236.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Esmolol Impurity 67 (CAS CATO-C4X-189167) is a certified pharmaceutical impurity reference standard with the molecular formula C13H16O4 and a molecular weight of 236.26 g/mol.
Structurally, Esmolol Impurity 67 (C13H16O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 236.26 g/mol, it falls into the medium-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).
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 Esmolol Impurity 67 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 | C13H16O4 |
| Molecular Weight | 236.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Esmolol Standards
- Esmolol Impurity N2 (CAS 112805-58-0)
- Esmolol Impurity 54 (CAS CATO-C4X-189154)
- Esmolol Impurity 8 (CAS 81147-94-6)
- Esmolol Impurity 78 (CAS CATO-C4X-189178)
- Esmolol Impurity 48 (CAS CATO-C4X-189148)
- Esmolol Impurity 87 (CAS CATO-C4X-189187)
- Esmolol Impurity 21 (CAS CATO-C4X-189121)
- Esmolol Impurity 96 (CAS CATO-C4X-189196)
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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