Etomidate Impurity 18 CAS CATO-C4X-188418
| CAS No. | CATO-C4X-188418 |
| Molecular Formula | C14H19NO3 |
| Molecular Weight | 249.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Etomidate Impurity 18.
CATO supplies Etomidate Impurity 18 (CAS CATO-C4X-188418), a pharmacopoeial impurity reference standard (molecular formula C14H19NO3, MW 249.31 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Etomidate Impurity 18 (C14H19NO3) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Etomidate Impurity 18 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C14H19NO3 |
| Molecular Weight | 249.31 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Etomidate Standards
- Etomidate-d5 (CAS CATO-C4X-188451)
- Etomidate impurity 56 (CAS 83898-12-8)
- Etomidate Impurity 22 (CAS CATO-C4X-188422)
- Etomidate Impurity 66 (CAS CATO-C4X-188466)
- S-(-)-Etomidate (CAS 56649-47-9)
- Etomidate Racemate (CAS 15301-65-2)
- Etomidate EP Impurity C (CAS 792842-51-4)
- Etomidate Impurity 12 (CAS CATO-C4X-188412)
Recommended Standards
- Clemastine Impurity 31 (CAS CATO-C4X-183731)
- Esmolol Impurity 96 (CAS CATO-C4X-189196)
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- Prilocaine Impurity 35 (CAS CATO-C4X-193435)
- Budesonide Impurity 26 (CAS 77017-17-5)
- Sitagliptin Impurity 149 (CAS CATO-C4X-1144149)
- Dobutamine Impurity 35 (CAS CATO-C4X-129835)
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- 2,3-Difluoro-4-nitropyridine (CAS 1782505-98-9)
- 6-Chloro-2-methylquinoline-5-carboxylic acid (CAS 607380-17-6)
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- 1-Bromo-5-fluoro-2-methoxy-4-nitrobenzene (CAS 84478-77-3)
- Liraglutide(3-31)TFA Salt (CAS CATO-C4X-19921)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com