Esmolol Impurity 94 CAS CATO-C4X-189194
| CAS No. | CATO-C4X-189194 |
| Molecular Formula | C13H17ClO4 |
| Molecular Weight | 272.72 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Esmolol Impurity 94 (C13H17ClO4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
Esmolol Impurity 94 (CAS CATO-C4X-189194) is a certified pharmaceutical impurity reference standard with the molecular formula C13H17ClO4 and a molecular weight of 272.72 g/mol.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Esmolol Impurity 94 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 | C13H17ClO4 |
| Molecular Weight | 272.72 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Esmolol Standards
- Esmolol Impurity 46 (CAS 112805-66-0)
- Esmolol Impurity 55 (CAS 33947-97-6)
- Esmolol Impurity 81 (CAS CATO-C4X-189181)
- (R)-Esmolol Acid (CAS 910651-37-5)
- Esmolol Impurity 29 (CAS CATO-C4X-189129)
- Esmolol Impurity 4 (CAS 81148-15-4)
- Esmolol Impurity 71 (CAS CATO-C4X-189171)
- Esmolol Impurity 37 (CAS CATO-C4X-189137)
Recommended Standards
- (2E)-1-(3-Chlorophenyl)-3-(2-methoxyphenyl)prop-2-en-1-one (CAS 1013591-50-8)
- Mebeverine EP Impurity E (CAS 69788-75-6)
- 1-[(4-aminophenyl)methyl]-6-chloro-2,3-dihydro-1h-indol-2-one (CAS 1019456-03-1)
- tert-Butyl 2-(4-chloro-2-methoxyphenoxy)acetate (CAS 937817-42-0)
- Desonide Impurity 17 (CAS CATO-C4X-130117)
- Ursodeoxycholic Acid impurity 99 (CAS CATO-C4X-142299)
- Ramelteon Impurity 65 (CAS 2819252-94-1)
- 3-(5-Bromothiophen-2-yl)-4-methyl-1h-pyrazol-5-amine (CAS 1310810-69-5)
- 2-Chloro-4-fluoro-5-[1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]benzoic Acid (CAS 177489-17-7)
- 6-(Difluoromethyl)-9-ethyl-9H-purin-2-amine (CAS 1706442-43-4)
- (S)-Pyrrolidin-3-ol benzenesulfonate (CAS 2883760-75-4)
- 2-Ethylphenyl isothiocyanate (CAS 19241-19-1)
- 3-Oxo-2,3-dihydrobenzofuran-7-carboxylic acid (CAS 1344897-22-8)
- Osteogenic Growth Peptide (10-14) (CAS 105250-85-9)
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