3-Methyl-2h-benzo[e][1,2,4]thiadiazine-7-carboxylic acid 1,1-dioxide CAS 91192-49-3
| CAS No. | 91192-49-3 |
| Molecular Formula | C9H8N2O4S |
| Molecular Weight | 240.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-Methyl-2h-benzo[e][1,2,4]thiadiazine-7-carboxylic acid 1,1-dioxide (C9H8N2O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 240.24 g/mol, it falls into the medium-molecular-weight range. 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 3-Methyl-2h-benzo[e][1,2,4]thiadiazine-7-carboxylic acid 1,1-dioxide (CAS 91192-49-3), a certified reference material (molecular formula C9H8N2O4S, MW 240.24 g/mol) for analytical method development and quality control.
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), 3-Methyl-2h-benzo[e][1,2,4]thiadiazine-7-carboxylic acid 1,1-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 | C9H8N2O4S |
| Molecular Weight | 240.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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 |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Recommended Standards
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- 5-(bromomethyl)-1-benzothiophene (CAS 10133-22-9)
- 4-Dodecanol (CAS 10203-32-4)
- (Z)-1-Bromohex-3-ene (CAS 5009-31-4)
- (3-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(4-methoxyphenyl)methanone (CAS 898761-44-9)
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