6,7-dimethyl-3,4-dihydro-1H-2-benzÂothiopyran-4-on-1-carboxyÂlic acid CAS 131008-23-6
| CAS No. | 131008-23-6 |
| Molecular Formula | C12H12O3S |
| Molecular Weight | 236.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
6,7-dimethyl-3,4-dihydro-1H-2-benzÂothiopyran-4-on-1-carboxyÂlic acid (CAS 131008-23-6), molecular formula C12H12O3S and molecular weight 236.29 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 6,7-dimethyl-3,4-dihydro-1H-2-benzÂothiopyran-4-on-1-carboxyÂlic acid (C12H12O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 236.29 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).
As a certified reference material (CRM), 6,7-dimethyl-3,4-dihydro-1H-2-benzÂothiopyran-4-on-1-carboxyÂlic acid 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.
Physical & Chemical Properties
| Molecular Formula | C12H12O3S |
| Molecular Weight | 236.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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.) | 1994 |
| Sulfur Atoms | 1 |
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