5-Hydroxy-2,3-dihydrobenzo[b]thiophene 1,1-dioxide CAS 1781541-86-3
| CAS No. | 1781541-86-3 |
| Molecular Formula | C8H8O3S |
| Molecular Weight | 184.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Hydroxy-2,3-dihydrobenzo[b]thiophene 1,1-dioxide (CAS 1781541-86-3), molecular formula C8H8O3S and molecular weight 184.21 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-Hydroxy-2,3-dihydrobenzo[b]thiophene 1,1-dioxide (C8H8O3S) 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 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 184.21 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 5-Hydroxy-2,3-dihydrobenzo[b]thiophene 1,1-dioxide 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 | C8H8O3S |
| Molecular Weight | 184.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
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