3-Methylisothiazole-5-sulfonamide CAS 1022128-99-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1022128-99-9 |
| Molecular Formula | C4H6N2O2S2 |
| Molecular Weight | 178.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Methylisothiazole-5-sulfonamide (CAS 1022128-99-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C4H6N2O2S2. Molecular weight: 178.23 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C4H6N2O2S2 |
| Molecular Weight | 178.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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.) | 1988 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Methylisothiazole Standards
- 3-Methylisothiazole-4-sulfonic acid (CAS 933-85-7)
- Ethyl 3-methylisothiazole-4-carboxylate (CAS 15901-51-6)
- 3-Methylisothiazole-4,5-dicarboxylic acid (CAS 67048-61-7)
- 3-Methylisothiazole-5-sulfonyl chloride (CAS 1355334-86-9)
- Methyl 3-methylisothiazole-5-carboxylate (CAS 15901-54-9)
- Methyl 5-methylisothiazole-4-carboxylate (CAS 15901-70-9)
- 3-Methylisothiazole-4-carbohydrazide (CAS 89179-69-1)
- Methyl 3-methylisothiazole-4-carboxylate (CAS 74410-97-2)
Recommended Standards
- 3-(4-Methoxyphenyl)propanimidamide (CAS 102151-93-9)
- 3-Amino-1,5,6,7,8,9-hexahydro-2H-cyclohepta[b]pyridin-2-one (CAS 1023812-73-8)
- n-Methyl-2-[(2-methylphenyl)amino]acetamide (CAS 1021236-82-7)
- 4-(Difluoromethyl)-2-propylpyrimidine-5-carboxylic acid (CAS 1344101-95-6)
- 2-Fluoro-2-iodo-N-methylacetamide (CAS 883499-47-6)
- 2,4-dimethoxyquinoline (CAS 40335-00-0)
- 2-Bromo-5,6-dihydro-4H-pyrrolo[3,2-d]thiazole-5-carboxylic acid (CAS 1263177-18-9)
- (4-Amino-3-bromo-5-(difluoromethyl)pyridin-2-yl)methanol (CAS 1804720-80-6)
- 2-(Aminomethyl)-3-bromo-6-chloro-5-(difluoromethyl)pyridine (CAS 1805033-74-2)
- Semaglutide Impurity 146 (CAS 2645421-68-5)
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