3,4-Dichlorothiophene-2-sulfonyl chloride CAS 439898-68-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 439898-68-7 |
| Molecular Formula | C4HCl3O2S2 |
| Molecular Weight | 251.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-Dichlorothiophene-2-sulfonyl chloride (CAS 439898-68-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C4HCl3O2S2. Molecular weight: 251.54 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C4HCl3O2S2 |
| Molecular Weight | 251.54 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Dichlorothiophene Standards
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- 2,5-Dichlorothiophene-3,4-dicarboxylic acid (CAS 36217-24-0)
- 4,5-Dichlorothiophene-2-sulfonyl fluoride (CAS 108158-06-1)
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- 2,5-Dichlorothiophene-3-sulfonamide (CAS 53595-68-9)
Recommended Standards
- 1-Chloro-4-(2,6-dichlorophenyl)butan-2-one (CAS 2097862-03-6)
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- Tris(2-chloroethyl)-orthoformate (CAS 18719-58-9)
- EPZ005687 (CAS 1396772-26-1)
- 2-amino-3-methylhexan-1-ol hydrochloride (CAS 1909309-56-3)
- 4-(2-Chlorophenyl)butan-2-ol (CAS 79622-78-9)
- 4-Chloro-3,5,6-trimethylpyridazine (CAS 24307-79-7)
- 2-(4-Chlorobenzyl)-5,6-dimethyl-1H-benzo[d]imidazole (CAS 1175771-93-3)
- Ethyl 1-aminopiperidine-3-carboxylate (CAS 938458-88-9)
- D-Val23-Tirzepatide (CAS CATO-CPTD788911)
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