6-Chlorobenzo[b]thiophene-3-sulfonyl chloride CAS 1593831-66-3
| CAS No. | 1593831-66-3 |
| Molecular Formula | C8H4Cl2O2S2 |
| Molecular Weight | 267.15 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-Chlorobenzo[b]thiophene-3-sulfonyl chloride (CAS 1593831-66-3), molecular formula C8H4Cl2O2S2 and molecular weight 267.15 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 6-Chlorobenzo[b]thiophene-3-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 267.15 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).
CATO manufactures 6-Chlorobenzo[b]thiophene-3-sulfonyl chloride under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H4Cl2O2S2 |
| Molecular Weight | 267.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Chlorobenzo Standards
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Recommended Standards
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- ethyl 4-(((5-amino-1,3,4-thiadiazol-2-yl)thio)methyl)benzoate (CAS 702648-86-0)
- 4-chloro-3-methyl-1H-pyrazolo[4,3-c]pyridine (CAS 120422-93-7)
- Liraglutide Impurity 16 TFA Salt (CAS CATO-C4X-199216)
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