Etomidate Impurity 32（Mixture of Diastereoisomer） CAS CATO-C4X-188432
| CAS No. | CATO-C4X-188432 |
| Molecular Formula | C14H17NO4 |
| Molecular Weight | 263.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C14H17NO4, Etomidate Impurity 32（Mixture of Diastereoisomer） contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 263.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Etomidate Impurity 32（Mixture of Diastereoisomer） (CAS CATO-C4X-188432), a pharmacopoeial impurity reference standard (molecular formula C14H17NO4, MW 263.29 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 | C14H17NO4 |
| Molecular Weight | 263.29 g/mol |
| Appearance | Off-white to pale 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Etomidate Standards
- Etomidate Impurity 65 (CAS 83763-26-2)
- Etomidate impurity 70 (CAS CATO-C4X-188470)
- Etomidate Impurity 12 (CAS CATO-C4X-188412)
- Etomidate Impurity 34 (CAS CATO-C4X-188434)
- Etomidate Impurity 52 (CAS CATO-C4X-188452)
- Etomidate Impurity N15 (CAS 2433776-55-5)
- Etomidate EP Impurity C (CAS 792842-51-4)
- Etomidate impurity 59 (CAS CATO-C4X-188459)
Recommended Standards
- Epinastine Impurity 12 (CAS 745761-19-7)
- Miglitol Impurity 19 (CAS 78614-47-8)
- Bisoprolol EP Impurity T (CAS 1173203-26-3)
- Amikacin Impurity 21 (CAS 40371-54-8)
- Metacresol Impurity 5 (CAS 59577-13-8)
- Maytansinoid Impurity 5 (CAS CATO-C4X-22515)
- Melitracen Impurity 5 (CAS 111-18-2)
- 5-((Pyridin-3-ylmethyl)thio)-4H-1,2,4-triazol-3-amine (CAS 710312-67-7)
- 3-Hydroxy-4-nitrobenzyl pivalate (CAS 929095-34-1)
- Nimesulide EP Impurity F (CAS 51765-72-1)
- 2-Amino-7-(2-hydroxyethyl)-1,7-dihydro-6H-purin-6-one (CAS 53498-52-5)
- N-methylbenzenecarboximidamide hydrochloride (CAS 41890-09-9)
- 2-(2-((4-Methylpyridin-2-yl)amino)thiazol-4-yl)acetic acid (CAS 1176779-50-2)
- Acetyl Tripeptide-1 (CAS 350595-76-5)
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