6-Ethyl-7-methyl-6H-dibenzo[c,e][1,2]thiazine-9-carboxylic acid 5,5-dioxide CAS 1858250-09-5
| CAS No. | 1858250-09-5 |
| Molecular Formula | C16H15NO4S |
| Molecular Weight | 317.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 6-Ethyl-7-methyl-6H-dibenzo[c,e][1,2]thiazine-9-carboxylic acid 5,5-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.
6-Ethyl-7-methyl-6H-dibenzo[c,e][1,2]thiazine-9-carboxylic acid 5,5-dioxide (CAS 1858250-09-5), molecular formula C16H15NO4S and molecular weight 317.36 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C16H15NO4S, 6-Ethyl-7-methyl-6H-dibenzo[c,e][1,2]thiazine-9-carboxylic acid 5,5-dioxide contains a flavonoid 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 317.36 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).
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.
Physical & Chemical Properties
| Molecular Formula | C16H15NO4S |
| Molecular Weight | 317.36 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- tert-Butyl 2-(3-fluorophenyl)-4H,5H,6H,7H-pyrazolo[1,5-a]pyrazine-5-carboxylate (CAS 1773507-41-7)
- 1858256-08-2 (9-Ethyl-5,5-dioxido-6H-dibenzo[c,e][1,2]thiazin-6-yl)acetic acid MFCD28954556 (CAS 1858256-08-2)
- tert-Butyl2-(4-fluorophenyl)-6,7-dihydropyrazolo[1,5-a]pyrazine-5(4H)-carboxylate (CAS 1773507-35-9)
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