5-Aminobenzo[b]thiophene 1,1-dioxide CAS 51956-01-5
| CAS No. | 51956-01-5 |
| Molecular Formula | C8H7NO2S |
| Molecular Weight | 181.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Aminobenzo[b]thiophene 1,1-dioxide (CAS 51956-01-5) is a high-purity analytical reference standard with the molecular formula C8H7NO2S and a molecular weight of 181.21 g/mol.
5-Aminobenzo[b]thiophene 1,1-dioxide (C8H7NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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-Aminobenzo[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 | C8H7NO2S |
| Molecular Weight | 181.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1971 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-Amino-N-(1,1-dioxidotetrahydrothiophen-3-yl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (CAS 618077-54-6)
- sodium peroxide (CAS 1313-60-6)
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- 2-Methyl-N-(1-methyl-1H-pyrazol-3-yl)butanamide (CAS 1171799-58-8)
- tert-Butyl 5-Oxo-2-azabicyclo[2.2.1]heptane-2-carboxylate (CAS 198835-06-2)
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