Etomidate Impurity 43 CAS CATO-C4X-188443
| CAS No. | CATO-C4X-188443 |
| Molecular Formula | C15H19NO5 |
| Molecular Weight | 293.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Etomidate Impurity 43 is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Etomidate Impurity 43 (CAS CATO-C4X-188443, C15H19NO5) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Etomidate Impurity 43 (C15H19NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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), Etomidate Impurity 43 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 | C15H19NO5 |
| Molecular Weight | 293.32 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Etomidate Standards
- Etomidate Impurity 16 (CAS CATO-C4X-188416)
- Etomidate impurity 55 (CAS CATO-C4X-188455)
- Etomidate Impurity 50 (CAS 2626887-15-6)
- Etomidate impurity 53 (CAS CATO-C4X-188453)
- Etomidate Impurity 23 (CAS 112421-33-7)
- Etomidate Impurity 5 (CAS 84711-26-2)
- Etomidate Impurity 31 (CAS CATO-C4X-188431)
- Etomidate Impurity 36 (CAS CATO-C4X-188436)
Recommended Standards
- Indacaterol Impurity 6 (CAS 93609-84-8)
- Lornoxicam Impurity 37 (CAS 106820-63-7)
- Indacaterol Impurity 40 （S-Isomer） (CAS 312753-76-7)
- Baloxavir Impurity 69 (CAS CATO-C4X-210869)
- Estradiol Impurity N2 (CAS 92817-10-2)
- Belumosudil Impurity 48 (CAS CATO-C4X-298848)
- Cefcapene Impurity 40 (CAS CATO-C4X-182440)
- N-(1-Cyanocyclopentyl)-2-((5-((3-methoxyphenyl)amino)-1,3,4-thiadiazol-2-yl)thio)acetamide (CAS 863415-36-5)
- 2-(2-Bromo-6-chloropyridin-3-yl)acetic acid (CAS 1227515-20-9)
- 898782-08-6 {2-[(Thiomorpholin-4-yl)methyl]phenyl}[3-(trifluoromethyl)phenyl]methanone DTXSID20643832 (CAS 898782-08-6)
- 1-Methylisoquinoline-3-carboxylic acid (CAS 910123-62-5)
- 5-Acetyl-2-fluorobenzaldehyde (CAS 319454-87-0)
- 1-Methylisoquinolin-3(2H)-one (CAS 36073-91-3)
- Copper Peptide ·2 acetate salt (CAS 130120-57-9)
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