6-Methyl-2,3-dihydro-1-benzothiophen-3-one CAS 68670-98-4
| CAS No. | 68670-98-4 |
| Molecular Formula | C9H8OS |
| Molecular Weight | 164.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 164.22 g/mol gives 6-Methyl-2,3-dihydro-1-benzothiophen-3-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 6-Methyl-2,3-dihydro-1-benzothiophen-3-one (CAS 68670-98-4), a certified reference material (molecular formula C9H8OS, MW 164.22 g/mol) for analytical method development and quality control.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system, 6-Methyl-2,3-dihydro-1-benzothiophen-3-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 164.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), 6-Methyl-2,3-dihydro-1-benzothiophen-3-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.
Physical & Chemical Properties
| Molecular Formula | C9H8OS |
| Molecular Weight | 164.22 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Sulfur Atoms | 1 |
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