2,5-Dichlorothiophene-3-sulfonyl chloride CAS 56946-83-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 56946-83-9 |
| Molecular Formula | C4HCl3O2S2 |
| Molecular Weight | 251.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,5-Dichlorothiophene-3-sulfonyl chloride (CAS 56946-83-9) 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.) | 1973 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Dichlorothiophene Standards
- 3,5-Dichlorothiophene-2-sulfonyl chloride (CAS 117500-73-9)
- 2,3-Dichlorothiophene-5-sulphonyl chloride (CAS 126714-85-0)
- 3,4-Dichlorothiophene-2-sulfonyl chloride (CAS 439898-68-7)
- 2,5-Dichlorothiophene-3,4-dicarboxylic acid (CAS 36217-24-0)
- 4,5-Dichlorothiophene-2-sulfonyl fluoride (CAS 108158-06-1)
- 2,5-Dichlorothiophene-3-sulfonic acid (CAS 738527-60-1)
- 2,3-Dichlorothiophene-5-sulfonamide (CAS 256353-34-1)
- 2,5-Dichlorothiophene-3-sulfonamide (CAS 53595-68-9)
Recommended Standards
- CPMF (CAS 6022-33-9)
- 4-Bromo-5-(3-chloropropyl)-1,3-dimethyl-1h-pyrazole (CAS 1479814-72-6)
- 4-Chloro-1-(3,4-dichlorophenyl)butan-1-one (CAS 80212-12-0)
- 1-(2-Chlorobenzyl)-4-methyl-1H-pyrazol-3-amine (CAS 1342956-17-5)
- 5-(Furan-2-yl)oxazole-2-carboxylic acid (CAS 1352496-53-7)
- Rapamycin Impurity 21 (CAS 151945-42-5)
- 3-Bromo-6-(trifluoromethyl)pyridine-2-carboxylic Acid Methyl Ester (CAS 1211538-62-3)
- 1-Difluoromethoxy-2-nitro-3-(trifluoromethoxy)benzene (CAS 1803825-59-3)
- (1S,4aS)-7-Hydroxy-1,4a-dimethyl-1,2,3,4,4a,9,10,10a-octahydrophenanthrene-1-carboxylic acid 61597-83-9 ST24033663 (CAS 61597-83-9)
- Semaglutide Impurity 1(OtBu-Ste-D-γGlu(OtBu)-AEEA-AEEA-OH) (CAS CATO-C4X-22261)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com