2,3-dihydro-1,4-benzoxathiine-2-carbonitrile CAS 51263-42-4
| CAS No. | 51263-42-4 |
| Molecular Formula | C9H7NOS |
| Molecular Weight | 177.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2,3-dihydro-1,4-benzoxathiine-2-carbonitrile (C9H7NOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 177.22 g/mol, it falls into the medium-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).
2,3-dihydro-1,4-benzoxathiine-2-carbonitrile (CAS 51263-42-4), molecular formula C9H7NOS and molecular weight 177.22 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H7NOS |
| Molecular Weight | 177.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- (S)-3-(hydroxymethyl)quinuclidin-3-ol (CAS 107770-17-2)
- Tert-butyl (S)-(5-oxo-4-azaspiro[2.6]Nonan-6-yl)carbamate (CAS 186509-87-5)
- 6-Hydroxy-2-methylquinoline-4-carboxylic acid (CAS 50741-53-2)
- 3-O-[2-Acetamido-2-deoxy-β-D-glucopyranosyl]-D-mannopyranose (CAS 210036-24-1)
- tert-Butyl 5-methoxy-1H-indole-3-carboxylate (CAS 1033265-55-2)
- Semaglutide（sodium salt） (CAS CATO-C4X-222619)
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