Esmolol Impurity 52 CAS CATO-C4X-189152
| CAS No. | CATO-C4X-189152 |
| Molecular Formula | C20H20O6 |
| Molecular Weight | 356.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Esmolol Impurity 52 (C20H20O6) contains a flavonoid core, 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 356.37 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).
As a process- or degradation-related impurity, Esmolol Impurity 52 (CAS CATO-C4X-189152, C20H20O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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), Esmolol Impurity 52 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 | C20H20O6 |
| Molecular Weight | 356.37 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 |
Related Esmolol Standards
- Esmolol Impurity 41 (CAS CATO-C4X-189141)
- Esmolol Impurity 72 (CAS 1293388-71-2)
- Esmolol Impurity 88 (CAS CATO-C4X-189188)
- Esmolol Impurity 50 (CAS CATO-C4X-189150)
- Esmolol Impurity 51 (CAS CATO-C4X-189151)
- Esmolol Impurity 42 (CAS CATO-C4X-189142)
- Esmolol Impurity 49 (CAS CATO-C4X-189149)
- Esmolol Impurity 44 (CAS CATO-C4X-189144)
Recommended Standards
- Mycophenolate Impurity 21 (CAS CATO-C4X-151521)
- Roxadustat Impurity 4 (CAS CATO-C4X-22134)
- 4-(3-methoxy-4-(((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)phenyl)butan-2-one (CAS 64703-96-4)
- Belumosudil Impurity 35 (CAS CATO-C4X-298835)
- N-Nitroso Buspirone EP Impurity A-d8 (CAS CATO-C4X-125841)
- Dotinurad Impurity 33 (CAS CATO-C4X-249433)
- Allisartan Isoproxil Impurity 23 (CAS CATO-C4X-321723)
- 4-(4-Fluorobenzyl)piperidin-4-ol (CAS 193355-56-5)
- (R)-5-Bromo-1,2,3,4-tetrahydronaphthalen-1-amine hydrochloride (CAS 2061996-69-6)
- BD 1008-d5 Dihydrobromide (CAS 1246817-16-2)
- 1-(Pyrrolidin-1-yl)propan-2-one (CAS 54151-38-1)
- (R)-4,4-difluoro-1-glycylpyrrolidine-2-carbonitrile (CAS 2355270-75-4)
- 2-[(2-Hydroxyethyl)(methyl)amino]isonicotinic acid (CAS 1184491-38-0)
- Des-Asp15-Tirzepatide (CAS CATO-CPTD788958)
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