Thiophen-2-ylmethanesulfonyl chloride CAS 174961-04-7
| CAS No. | 174961-04-7 |
| Molecular Formula | C5H5ClO2S2 |
| Molecular Weight | 196.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Thiophen-2-ylmethanesulfonyl 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.
Thiophen-2-ylmethanesulfonyl chloride (CAS 174961-04-7), molecular formula C5H5ClO2S2 and molecular weight 196.67 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, Thiophen-2-ylmethanesulfonyl chloride is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 196.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C5H5ClO2S2 |
| Molecular Weight | 196.67 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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.) | 2006 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related Thiophen Standards
- (Thiophen-3-yl)methanesulfonyl chloride (CAS 86843-10-9)
- 1-(Thiophen-3-ylmethyl)piperidin-3-amine (CAS 1248157-51-8)
- 2-(Thiophen-3-ylmethyl)cyclohexan-1-ol (CAS 1304383-81-0)
- [1-methyl-2-(thiophen-2-yl)pyrrolidin-3-yl]methanamine (CAS 1333696-69-7)
- 1-Ethyl-2-(thiophen-3-yl)pyrrolidin-3-amine (CAS 1339084-05-7)
- 2-(2-(Thiophen-2-yl)ethyl)cyclopentan-1-ol (CAS 1342630-13-0)
- 2-(Thiophen-3-yl)cycloheptan-1-ol (CAS 1478805-17-2)
- 1-(Thiophen-2-yl)heptan-1-one (CAS 30711-40-1)
Recommended Standards
- 2-(tert-Butyl)benzoyl Chloride (CAS 16372-51-3)
- (1S,2S)-2-(4-chlorophenyl)cyclopentan-1-ol (CAS 1821819-87-7)
- 4-(p-Tolyl)butanoyl chloride (CAS 160699-02-5)
- Benzene, 1-(chloromethyl)-4-(cyclopropylmethoxy)- (CAS 183994-41-4)
- (3-amino-4-carbamoylphenyl)boronic acid (CAS 725680-12-6)
- 1,2-Bis(3-((2-ethylhexyl)oxy)phenyl)ethane-1,2-dione (CAS 498572-72-8)
- 2,5,5-Trimethylcyclohexan-1-one (CAS 33543-18-9)
- tert-Butyl 4-((3-bromo-4-methylphenyl)sulfonyl)piperazine-1-carboxylate (CAS 1704122-06-4)
- 4-(Difluoromethyl)-2-fluoro-1-(trifluoromethyl)benzene (CAS 1214383-47-7)
- 62298-43-5 3-Amino-7-(dimethylamino)phenothiazin-5-ium, salt with 2',4',5',7'-tetrabromo-3',6'-dihydroxyspiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one (2:1) EINECS 263-491-2 (CAS 62298-43-5)
- Gentamicin X2 Sulfate (CAS 57793-88-1;36889-17-5(free base))
- 5-Hydroxy-2-(trifluoromethyl)benzamide (CAS 1243460-65-2)
- 1-Chloro-1,1-Difluoro-2-Pentanone (CAS 6301-95-7)
- Peptide 442 (CAS CATO-CPTD788442)
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 18665070610 / Nicole.chen@cato-chem.com