Esmolol Impurity 85 CAS CATO-C4X-189185
| CAS No. | CATO-C4X-189185 |
| Molecular Formula | C26H34N2O9 |
| Molecular Weight | 518.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Esmolol Impurity 85 (C26H34N2O9) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 518.56 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Esmolol Impurity 85 (CAS CATO-C4X-189185), a pharmacopoeial impurity reference standard (molecular formula C26H34N2O9, MW 518.56 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C26H34N2O9 |
| Molecular Weight | 518.56 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Esmolol Standards
- Esmolol Impurity 25 (CAS CATO-C4X-189125)
- Esmolol Impurity 90 (CAS CATO-C4X-189190)
- Esmolol Impurity 11 (CAS 98903-90-3)
- Esmolol Impurity 91 (CAS CATO-C4X-189191)
- Esmolol Impurity 66 (CAS CATO-C4X-189166)
- Esmolol Impurity 22 (CAS CATO-C4X-189122)
- Esmolol Impurity 24 (CAS CATO-C4X-189124)
- Esmolol Impurity 73 (CAS CATO-C4X-189173)
Recommended Standards
- Nicardipine Impurity 32 (CAS 134957-01-0)
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- CPI-1205 (CAS 1621862-70-1)
- Mitiglinide Calcium Impurity 17 (CAS 70925-10-9)
- Ruxolitinib Impurity 41 (CAS CATO-C4X-205841)
- Ibandronic Impurity 27 (CAS 1346601-22-6)
- 2-Chloro-6-methylpyridine-4-boronic acid (CAS 1320397-15-6)
- 10,11-Dehydrocurvularin (CAS 21178-57-4)
- N-(3-(1H-Imidazol-1-yl)propyl)-5-(benzo[d][1,3]dioxol-5-yl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carboxamide (CAS 899542-11-1)
- 2-(1H-Imidazol-2-yl)acetic Acid Hydrochloride (CAS 1297344-60-5)
- 2,4-Dichloro-5-(methylsulfanyl)benzoic acid (CAS 51521-99-4)
- 5-(Carboxymethoxy)-1-methyl-1H-pyrazole-3-carboxylic acid (CAS 679436-55-6)
- Semaglutide impurity 109 (CAS CATO-C4X-2226109)
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