| CAS No. | 64663-85-0 |
| Molecular Formula | C8H10SSe |
| Molecular Weight | 217.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
1,3-Dimethyl-4H,6H-selenopheno[3,4-c]thiophene (CAS 64663-85-0), molecular formula C8H10SSe and molecular weight 217.19 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, an aromatic ring system, 1,3-Dimethyl-4H,6H-selenopheno[3,4-c]thiophene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 217.19 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.
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.
| Molecular Formula | C8H10SSe |
| Molecular Weight | 217.19 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Sulfur Atoms | 1 |