Etomidate Impurity 26 CAS CATO-C4X-188426
| CAS No. | CATO-C4X-188426 |
| Molecular Formula | C20H30NO6 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C20H30NO6Br, Etomidate Impurity 26 contains a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 460.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO supplies Etomidate Impurity 26 (CAS CATO-C4X-188426), a pharmacopoeial impurity reference standard (molecular formula C20H30NO6Br, MW 460.36 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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 | C20H30NO6 Br |
| Molecular Weight | 460.36 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Etomidate Standards
- Etomidate Impurity 23 (CAS 112421-33-7)
- Etomidate Racemate (CAS 15301-65-2)
- Etomidate Impurity 75 (CAS 1567838-90-7)
- Etomidate Impurity 6 (CAS 23785-21-9)
- Etomidate Impurity N15 (CAS 2433776-55-5)
- Etomidate Impurity 50 (CAS 2626887-15-6)
- Etomidate Impurity N3 (CAS 31502-34-8)
- Etomidate EP Impurity A (CAS 3157-27-5)
Recommended Standards
- Fenoterol EP Impurity B (Enantiomer Mixture) (CAS 699525-61-6)
- Salbutamol Glyoxal Impurity (CAS 72189-44-7)
- Ezetimibe Impurity 53 (CAS 272778-12-8)
- Ethyl 3-((tert-butoxycarbonyl)amino)-3-methylbutanoate (CAS 130985-42-1)
- 3-methoxyfuran-2-carboxylic acid (CAS 88511-95-9)
- N-Cyclohexyl-3,4,5,6-tetrahydro-[2,3'-bipyridin]-2'-amine (CAS 1352499-66-1)
- 2-(3-(((3-(tert-Butoxy)-3-oxopropyl)amino)methyl)piperidin-1-yl)acetic acid (CAS 1353978-13-8)
- tert-Butyl (1-(2-aminoacetyl)pyrrolidin-3-yl)(ethyl)carbamate (CAS 1353987-16-2)
- 1-[3-(2-trimethylsilylethynyl)phenyl]hexahydropyrimidine-2,4-dione (CAS 2633726-39-1)
- Neuropeptide GE (CAS 134748-04-2)
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