Etomidate Impurity 33 CAS CATO-C4X-188433
| CAS No. | CATO-C4X-188433 |
| Molecular Formula | 2*C13H14N2O2S |
| Molecular Weight | N/A |
| 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 33.
As a process- or degradation-related impurity, Etomidate Impurity 33 (CAS CATO-C4X-188433, C13H14N2O2S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C13H14N2O2S, Etomidate Impurity 33 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 262.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 33 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 | 2*C13H14N2O2S |
| Molecular Weight | 262.33 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur 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
- Pirfenidone Impurity 23 (CAS 851518-71-3)
- Valsartan Impurity 56 HCl (CAS 482577-59-3)
- Posaconazole impurity 238 (CAS CATO-C4X-1208238)
- Methyl 2-methylazepane-2-carboxylate hydrochloride (CAS 72518-37-7)
- 5-Ethoxy-2-nitrobenzoic acid (CAS 78361-06-5)
- Ethyl 2-hydroxy-3-methyl-4-oxohex-2-enoate (CAS 1393591-65-5)
- (E)-4-((Isopentylamino)methylene)-2-phenylisoquinoline-1,3(2H,4H)-dione (CAS 1164557-74-7)
- 4-Cyclopropoxy-2-isopropoxy-3-methoxypyridine (CAS 1243312-78-8)
- 6,6-Dimethyl-6H-[1,3]dioxolo[4,5-g]chromene (CAS 63434-48-0)
- TAT 14 Peptide (Nrf2 Activator III) (CAS 1362661-34-4)
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