5-(Acetyloxy)-1,3-benzoxathiol-2-one CAS 82531-06-4
| CAS No. | 82531-06-4 |
| Molecular Formula | C9H6O4S |
| Molecular Weight | 210.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-(Acetyloxy)-1,3-benzoxathiol-2-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
5-(Acetyloxy)-1,3-benzoxathiol-2-one (CAS 82531-06-4), molecular formula C9H6O4S and molecular weight 210.21 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H6O4S, 5-(Acetyloxy)-1,3-benzoxathiol-2-one contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 210.21 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H6O4S |
| Molecular Weight | 210.21 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-Bromobenzo[d]thiazole-5-carboxamide (CAS 1823314-91-5)
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- 5-Amino-4'-chloro-1,6-dihydro-[1,1'-biphenyl]-3(2H)-one (CAS 478064-04-9)
- 551936-17-5 3JX85UOO24 AIM-102 UNII-3JX85UOO24 (4R)-4-(((2R)-2-Amino-3-cyclohexyl-propanoyl)amino)-5-(carboxymethylamino)-5-oxo-pentanoic acid D-Cyclohexylalanine-D-glutamic-glycine tripeptide Glycine, 3-cyclohexyl-D-alanyl-D-alpha-glutamyl- (CAS 551936-17-5)
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