3-chloro-1,2-thiazole-4-sulfonamide CAS 89502-16-9
| CAS No. | 89502-16-9 |
| Molecular Formula | C3H3ClN2O2S2 |
| Molecular Weight | 198.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-chloro-1,2-thiazole-4-sulfonamide (CAS 89502-16-9) is a high-purity analytical reference standard with the molecular formula C3H3ClN2O2S2 and a molecular weight of 198.65 g/mol.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 3-chloro-1,2-thiazole-4-sulfonamide is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 198.65 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C3H3ClN2O2S2 |
| Molecular Weight | 198.65 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related chloro Standards
- 6-Chloro-4-(isopropylamino)nicotinaldehyde (CAS 1012880-02-2)
- 2-Chloro-6-(cyclopentyloxy)pyrazine (CAS 1016697-18-9)
- 3-Chloro-5-(methylsulfonyl)-1,2,4-thiadiazole (CAS 10191-91-0)
- 5-Chloro-6-methyl-3-(pyrrolidin-1-yl)-1,2,4-triazine (CAS 1023818-03-2)
- Methyl 2-(5-chloro-2-methylphenyl)acetate (CAS 1076191-96-2)
- Methyl (2-chloro-6-methylphenyl)acetate (CAS 1076192-08-9)
- 3-(4-Chloro-3-methylphenyl)propanoic acid (CAS 1086386-05-1)
- 2-Chloro-N-ethyl-N-methylnicotinamide (CAS 112006-59-4)
Recommended Standards
- 3-Chloro-1-(4-methoxyphenyl)-1-propanone (CAS 35999-20-3)
- 3-Chloro-2-(pyrrolidin-3-yloxy)pyridine (CAS 817187-51-2)
- 3-Chloro-1-(2-hydroxy-3-methylphenyl)propan-1-one (CAS 42244-86-0)
- 3-Chloro-2,4-dimethylbenzoic acid methyl ester (CAS 2056110-46-2)
- n-(3-Bromophenyl)-2,2-dimethylpropanamide (CAS 195389-97-0)
- (S)-4-Phenethyloxazolidine-2,5-dione (CAS 1377983-54-4)
- 1-(5-Chloro-2-ethoxyphenyl)-N-methylmethanamine (CAS 893581-50-5)
- 6-tert-Butyl-2-methyl-3,4-dihydro-2h-1,4-benzoxazin-3-one (CAS 862249-75-0)
- Cycloxydim (CAS 101205-02-1)
- [2-(4-fluorophenoxymethyl)phenyl]boronic acid (CAS 1334325-11-9)
- (PB-7-11-2344'3')-Dichloro[(4aS,13aS,17aS,21aS)-1,2,3,4,4a,5,6,12,13,13a,14,15,16,17,17a,18,19,20,21,21a-eicosahydro-11,7-nitrilo-7H-dibenzo[b,h][1,4,7,10]tetraazacycloheptadecine-κN5,κN13,κN18,κN21,κN22]manganese (CAS 435327-40-5)
- 1-(2-Fluoro-4-nitrophenyl)piperazine (CAS 154590-33-7)
- Cis-6-ethyloctahydroindolizine (CAS 112979-79-0)
- Des-Ser39-Tirzepatide (CAS CATO-CPTD788936)
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