6-Chloro-4-(phenylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid CAS 874794-87-3
| CAS No. | 874794-87-3 |
| Molecular Formula | C15H12ClNO5S |
| Molecular Weight | 353.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 6-Chloro-4-(phenylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid.
CATO supplies 6-Chloro-4-(phenylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid (CAS 874794-87-3), a certified reference material (molecular formula C15H12ClNO5S, MW 353.78 g/mol) for analytical method development and quality control.
Based on its molecular formula C15H12ClNO5S, 6-Chloro-4-(phenylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-2-carboxylic acid contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 353.78 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures 6-Chloro-4-(phenylsulfonyl)-3,4-dihydro-2H-1,4-benzoxazine-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.
Physical & Chemical Properties
| Molecular Formula | C15H12ClNO5S |
| Molecular Weight | 353.78 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; 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 |
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Recommended Standards
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- Methyl (E)-(4-methylstyryl)carbamate (CAS 135879-75-3)
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- n,n-Diphenylhydrazinecarboxamide (CAS 603-51-0)
- 2-(5-Methylbenzo[d]oxazol-2-yl)acetamide (CAS 35783-56-3)
- 7-Bromo-1,2,3,4-tetrahydro-1,5-naphthyridine (CAS 1256787-10-6)
- 2-(((1-Isobutyl-1H-pyrazol-4-yl)methyl)amino)ethan-1-ol hydrochloride (CAS 1856069-73-2)
- 59880-97-6 Chemotactic peptide F-Met-Leu-Phe L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)- N-Formyl-L-methionyl-L-leucyl-L-phenylalanine N-Formyl-Met-Leu-Phe N-Formylmethionine leucyl-phenylalanine fMLF fMLP (misnomer but widely used) (CAS 59880-97-6)
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