4-Methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-sulfonyl chloride CAS 892948-94-6
| CAS No. | 892948-94-6 |
| Molecular Formula | C9H10ClNO3S |
| Molecular Weight | 247.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies 4-Methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-sulfonyl chloride (CAS 892948-94-6), a certified reference material (molecular formula C9H10ClNO3S, MW 247.70 g/mol) for analytical method development and quality control.
Structurally, 4-Methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-sulfonyl chloride (C9H10ClNO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 247.70 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C9H10ClNO3S |
| Molecular Weight | 247.70 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 4-Methyl-3,4-dihydro-2H-benzo[b][1,4]oxazine-7-sulfonyl chloride (CAS 368869-93-6)
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- 2-Oxo-3,4-dihydro-2H-1,3-benzoxazine-6-sulfonyl chloride (CAS 1427379-39-2)
- 3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-sulfonyl chloride (CAS 31794-45-3)
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