1,2,4-Thiadiazole-3-sulfonyl chloride CAS 2254-65-1
| CAS No. | 2254-65-1 |
| Molecular Formula | C2HClN2O2S2 |
| Molecular Weight | 184.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1,2,4-Thiadiazole-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.
1,2,4-Thiadiazole-3-sulfonyl chloride (CAS 2254-65-1) is a high-purity analytical reference standard with the molecular formula C2HClN2O2S2 and a molecular weight of 184.62 g/mol.
Based on its molecular formula C2HClN2O2S2, 1,2,4-Thiadiazole-3-sulfonyl chloride contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 184.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C2HClN2O2S2 |
| Molecular Weight | 184.62 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Thiadiazole Standards
- 1,3,4-Thiadiazole-2-sulfonyl chloride (CAS 362521-36-6)
- 1,3,4-THIADIAZOLE, 2-BROMO-5-METHYL- 2-BROMO-5-METHYL-1,3,4-THIADIAZOLE 2-METHYL-5-BROMO-1,3,4-THIADIAZOLE 5-BROMO-2-METHYL-1,3,4-THIADIAZOLE 54044-79-0 BC004035 (CAS 54044-79-0)
- 5-Butyl-1,2,3-thiadiazole-4-carboxylic acid (CAS 1708437-34-6)
- 5-methyl-1,3,4-thiadiazole-2-sulfonyl fluoride (CAS 1909313-52-5)
- 1,2,5-Thiadiazole-3-carboxylic acid, 4-(1-propyn-1-yl)-, methyl ester (CAS 2618882-53-2)
- 5-phenyl-1,3,4-thiadiazole-2-carbonitrile (CAS 70391-08-1)
- 5-methyl-1,3,4-thiadiazole-2-sulfonamide (CAS 66464-90-2)
- 5-Phenyl-1,3,4-thiadiazole-2-carbaldehyde (CAS 99066-69-0)
Recommended Standards
- 1-(5-Chloro-2-methylphenyl)urea (CAS 5428-48-8)
- 1-(5-Chloro-2-methoxyphenyl)ethan-1-one (CAS 6342-64-9)
- 1-Chloro-3-phenoxypropan-2-one (CAS 940-47-6)
- 1-(5-Chloro-2-hydroxy-4-methylphenyl)ethan-1-one (CAS 28480-70-8)
- 4-((tert-Butyldimethylsilyl)-oxy)-4-phenylbutan-1-ol (CAS 241818-03-1)
- 2-(Chloromethyl)-4-methylquinoline hydrochloride (CAS 1956311-13-9)
- 1-(3,4-Dimethoxybenzyl)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline hydrochloride 4-Isoxazolecarboxylic acid 6436-62-0 (CAS 6436-62-0)
- Ethyl 4-(piperidine-2-carboxamido)butanoate hydrochloride (CAS 1604641-88-4)
- 2-Isopropyl-1,5-dimethyl-1H-pyrazol-3(2H)-one (CAS 897665-83-7)
- Tert-butyl 1-methylhexahydropyrrolo[3,4-c]pyrrole-2(1H)-carboxylate (CAS 1784049-94-0)
- 1-(5-Methylpyrazin-2-yl)piperidin-4-one (CAS 1400706-83-3)
- N-(4-methoxybenzyl)-4-(3-(trifluoromethyl)benzoyl)-1H-pyrrole-2-carboxamide (CAS 478078-25-0)
- trans-1,4-Dibromo-2-butene-d6 (CAS 118886-18-3)
- His-Aib-Semaglutide (CAS CATO-C4X-2226220)
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