Ethyl 5-methyl-3-(methylthio)-5H-benzo[c]thieno[3,4-e][1,2]thiazine-1-carboxylate 4,4-dioxide CAS 175276-42-3
| CAS No. | 175276-42-3 |
| Molecular Formula | C15H15NO4S3 |
| Molecular Weight | 369.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ethyl 5-methyl-3-(methylthio)-5H-benzo[c]thieno[3,4-e][1,2]thiazine-1-carboxylate 4,4-dioxide is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ethyl 5-methyl-3-(methylthio)-5H-benzo[c]thieno[3,4-e][1,2]thiazine-1-carboxylate 4,4-dioxide (CAS 175276-42-3) is a high-purity analytical reference standard with the molecular formula C15H15NO4S3 and a molecular weight of 369.48 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Ethyl 5-methyl-3-(methylthio)-5H-benzo[c]thieno[3,4-e][1,2]thiazine-1-carboxylate 4,4-dioxide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 369.48 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Ethyl 5-methyl-3-(methylthio)-5H-benzo[c]thieno[3,4-e][1,2]thiazine-1-carboxylate 4,4-dioxide 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 | C15H15NO4S3 |
| Molecular Weight | 369.48 g/mol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 3 |
Recommended Standards
- 4-(7-(o-Tolyl)-1,4-thiazepane-4-carbonyl)phenyl acetate (CAS 1705330-71-7)
- tert-Butyl3-((tosyloxy)methyl)piperidine-1-carboxylate (CAS 191092-05-4)
- 1-Boc-4-[(tosyloxy)methyl]piperidine (CAS 166815-96-9)
- (R)-Amisulpride (CAS 71675-90-6)
- BDTBO26 (CAS 2243732-56-9)
- Fmoc-D-3-Carbamoylphe (CAS 1217637-40-5)
- 3-(6-Phenylthiazolo[3,2-b][1,2,4]triazol-2-yl)propanoic acid (CAS 1437482-65-9)
- Methyl 1-(prop-2-en-1-yl)cyclopropane-1-carboxylate (CAS 344326-12-1)
- 2-Amino-1-(3,4-dimethylpiperazin-1-yl)ethanone (CAS 1342213-00-6)
- N-(1-Methyl-1H-indol-5-yl)-N-3-pyridinylurea (CAS 143797-63-1)
- Di-tert-butyl 7-chloro-2,3-dihydro-1H-benzo[e][1,4]diazepine-1,4(5H)-dicarboxylate (CAS 1416440-01-1)
- 2-Bromo-3-methoxy-6-methylpyridine (CAS 24207-22-5)
- Ethyl 7-chloro-3,6-dimethyl-1H-indole-2-carboxylate (CAS 1227270-89-4)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
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