Oxomemazine impurity 1 CAS CATO-C4X-29531
| CAS No. | CATO-C4X-29531 |
| Molecular Formula | C17H19N3O3S |
| Molecular Weight | 345.42 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 345.42 g/mol gives Oxomemazine impurity 1 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Oxomemazine impurity 1 (CAS CATO-C4X-29531, C17H19N3O3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C17H19N3O3S, Oxomemazine impurity 1 contains a steroid core, 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 345.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C17H19N3O3S |
| Molecular Weight | 345.42 g/mol |
| Purity | 97%+ |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Oxomemazine Standards
Recommended Standards
- Timolol Impurity 28 (CAS CATO-C4X-149628)
- tert-Butyl 6,7-dimethyl-4-oxospiro[chroman-2,4'-piperidine]-1'-carboxylate (CAS 1013333-61-3)
- Timolol Impurity 25 (CAS CATO-C4X-149625)
- Tert-butyl 5,6-dimethoxyspiro[indene-1,4'-piperidine]-1'-carboxylate (CAS 1026372-06-4)
- Tofacitinib Impurity N2 (CAS 1206825-36-6)
- chondroitin sulfate impurity A (CAS CATO-C4X-32811)
- Benidipine Impurity 57 (CAS 49840-66-6)
- 2-(4-Chlorophenyl)-1,3-diazaspiro[4.4]non-1-en-4-one (CAS 904816-22-4)
- 5-(Adamantan-1-yl)-3-(trifluoromethyl)-1h-pyrazole (CAS 1046463-05-1)
- 3-(3-Methyl-1H-1,2,4-triazol-5-yl)piperidine dihydrochloride (CAS 1609402-84-7)
- Methyl 4-benzyl-6-methylmorpholine-2-carboxylate (CAS 1416372-19-4)
- (2R,3R,4S,5R)-2-(6-Hydroxy-2-(pyridin-3-yl)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 88868-68-2)
- tert-Butyl 4-(2-chloroacetoxy)piperidine-1-carboxylate (CAS 1704122-01-9)
- Semaglutide impurity 103 (CAS 1446013-07-5)
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