6-(Ethylsulfonyl)-4-(methylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid CAS 866050-99-9
| CAS No. | 866050-99-9 |
| Molecular Formula | C12H15NO7S2 |
| Molecular Weight | 349.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 6-(Ethylsulfonyl)-4-(methylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid 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-(Ethylsulfonyl)-4-(methylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid (CAS 866050-99-9), molecular formula C12H15NO7S2 and molecular weight 349.38 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6-(Ethylsulfonyl)-4-(methylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid (C12H15NO7S2) 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 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 349.38 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C12H15NO7S2 |
| Molecular Weight | 349.38 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Ethylsulfonyl Standards
- 5-(Ethylsulfonyl)-4-(4-nitrophenyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile (CAS 1707584-02-8)
- 5-(Ethylsulfonyl)-4-(3-nitrophenyl)-2-thioxo-1,2-dihydropyridine-3-carbonitrile (CAS 1708317-27-4)
- 2-(4-(Ethylsulfonyl)-3-(4-methoxyphenyl)-6-oxopyridazin-1(6H)-yl)acetic acid (CAS 1708269-11-7)
- 5-(Ethylsulfonyl)-4-(4-nitrophenyl)-1H-thieno[2,3-c]pyrazol-3-amine (CAS 1707379-14-3)
- 2-(4-(Ethylsulfonyl)benzamido)-N-methylthiophene-3-carboxamide (CAS 898446-89-4)
- 2-(Ethylsulfonyl)-4-(2-methoxyphenyl)-6-(trifluoromethyl)pyrimidine (CAS 862785-74-8)
- 1-[4-(Ethylsulfonyl)-2-nitrophenyl]piperidine-2-carboxylic acid (CAS 1214083-46-1)
- 1-[4-(Ethylsulfonyl)-2-nitrophenyl]piperidine-3-carboxylic acid (CAS 951624-93-4)
Recommended Standards
- 6-(((4-Methylthiazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl furan-2-carboxylate (CAS 896306-58-4)
- 6-Benzyl-4-(4-methoxyphenyl)-3,4,6,7-tetrahydro-1H-pyrrolo[3,4-d]pyrimidine-2,5-dione (CAS 332389-26-1)
- 5-(((9H-fluoren-9-yl)methoxy)carbonyl)-5-azaspiro[2.3]Hexane-4-carboxylic acid (CAS 2225141-14-8)
- 6-Oxo-1,2,4-triphenyl-1,6-dihydropyrimidine-5-carbonitrile (CAS 65004-31-1)
- 8-Bromo-N-methylquinolin-4-amine 2,2,2-trifluoroacetate (CAS 1263094-87-6)
- Methyl 2-oxo-5,6,7,8-tetrahydro-2H-chromene-3-carboxylate (CAS 85531-80-2)
- 2-(3,5,5-Trimethylhexanoyl)oxazole (CAS 898759-41-6)
- N'-(3-(1H-pyrrol-1-yl)thiophene-2-carbonyl)-4-methoxybenzenesulfonohydrazide (CAS 672925-26-7)
- [1-(5-Chloro-1,3-benzoxazol-2-yl)piperidin-3-yl]-acetic acid (CAS 1035840-57-3)
- 1,5-Bis((4-aminobutyl)amino)anthracene-9,10-dione (CAS 123296-26-4)
- 1,3-Dimethyl-1H-1,2,4-triazole-5-carbaldehyde (CAS 877131-01-6)
- 2-Fluoro-3-(trifluoromethyl)pyridine-4-methanol (CAS 1227600-45-4)
- n-Hexylbenzene-2,3,4,5,6-d5 (CAS 1219799-07-1)
- Osteogenic Growth Peptide (10-14) (CAS 105250-85-9)
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