6-Chloro-4-(methylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carbohydrazide CAS 866134-85-2
| CAS No. | 866134-85-2 |
| Molecular Formula | C10H12ClN3O4S |
| Molecular Weight | 305.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 305.74 g/mol gives 6-Chloro-4-(methylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carbohydrazide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
6-Chloro-4-(methylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carbohydrazide (CAS 866134-85-2), molecular formula C10H12ClN3O4S and molecular weight 305.74 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 6-Chloro-4-(methylsulfonyl)-3,4-dihydro-2H-benzo[b][1,4]oxazine-2-carbohydrazide (C10H12ClN3O4S) is characterized by a nitrogen-containing heterocyclic scaffold, 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C10H12ClN3O4S |
| Molecular Weight | 305.74 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
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