4-Bromo-1,2-thiazole-5-sulfonyl chloride CAS 1781557-85-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1781557-85-4 |
| Molecular Formula | C3HBrClNO2S2 |
| Molecular Weight | 262.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromo-1,2-thiazole-5-sulfonyl chloride (CAS 1781557-85-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C3HBrClNO2S2. Molecular weight: 262.53 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C3HBrClNO2S2 |
| Molecular Weight | 262.53 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Bromo Standards
- 6-Bromo-8-chlorochroman-4-amine (CAS 1094456-49-1)
- 8-Bromo-6-chlorochroman-4-amine (CAS 1094456-55-9)
- 2-Bromo-N-(2-chlorobenzyl)acetamide (CAS 1119111-64-6)
- 2’-Bromo-5’-chloro-4’-methylacetanilide (CAS 116010-06-1)
- 2-Bromo-N-(2-chloro-4-methylphenyl)acetamide (CAS 1211441-76-7)
- (S)-8-bromo-6-chlorochroman-4-amine (CAS 1213557-86-8)
- (R)-8-bromo-6-chlorochroman-4-amine (CAS 1221639-12-8)
- 2-Bromo-N-(4-chloro-3-methylphenyl)acetamide (CAS 1225777-86-5)
Recommended Standards
- Ziprasidone Impurity 12 (CAS 1607828-43-2)
- 1-(5-Bromopyridin-3-yl)-4-chlorobutan-1-one (CAS 1823829-33-9)
- (Z)-[2-Bromo-1-(4-chlorophenyl)ethylidene](methoxy)amine (CAS 152801-67-7)
- 4-Benzyl-5-((p-tolylamino)methyl)-4H-1,2,4-triazole-3-thiol (CAS 917749-61-2)
- 3-Phenyl-1H-pyrrolo[3,2-c]pyridine (CAS 25796-86-5)
- (2E,4E)-2-Benzoyl-5-(2-nitrophenyl)-2,4-pentadienenitrile (CAS 1025224-57-0)
- 5-(4-Methylpiperidin-1-yl)nicotinic acid (CAS 1503775-15-2)
- Methyl 5-(2-methoxybenzoyl)furan-2-carboxylate (CAS 1399662-48-6)
- 2,5-Dihydro-2-methylfuran (CAS 1708-30-1)
- 1-His-N-a-ethylidene Semaglutide (CAS CATO-C4X-2226252)
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