4-((4-(Tert-butyl)phenyl)sulfonyl)-6-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylic acid CAS 866134-75-0
| CAS No. | 866134-75-0 |
| Molecular Formula | C19H20ClNO5S |
| Molecular Weight | 409.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-((4-(Tert-butyl)phenyl)sulfonyl)-6-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies 4-((4-(Tert-butyl)phenyl)sulfonyl)-6-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylic acid (CAS 866134-75-0), a certified reference material (molecular formula C19H20ClNO5S, MW 409.88 g/mol) for analytical method development and quality control.
The molecular framework of 4-((4-(Tert-butyl)phenyl)sulfonyl)-6-chloro-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carboxylic acid (C19H20ClNO5S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C19H20ClNO5S |
| Molecular Weight | 409.88 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
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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