5-Bromoisothiazole-4-carboxylic acid CAS 1651166-54-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1651166-54-9 |
| Molecular Formula | C4H2BrNO2S |
| Molecular Weight | 208.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Bromoisothiazole-4-carboxylic acid (CAS 1651166-54-9), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C4H2BrNO2S. Molecular weight: 208.03 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C4H2BrNO2S |
| Molecular Weight | 208.03 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromoisothiazole Standards
- 4-Bromoisothiazole-3-carboxylic Acid (CAS 4576-88-9)
- 4-Bromoisothiazole-5-carboxylic acid (CAS 88982-81-4)
- 5-Bromoisothiazole-3-carboxylic acid (CAS 4576-89-0)
- 4-Bromoisothiazole-3-carbaldehyde (CAS 88982-79-0)
- 4-Bromoisothiazole-5-carbaldehyde (CAS 5242-62-6)
- 3-Bromoisothiazole-4-carbonitrile (CAS 1268247-73-9)
- 4-Bromoisothiazole-3-carbonitrile (CAS 89089-06-5)
- Ethyl 4-bromoisothiazole-5-carboxylate (CAS 2168896-84-0)
Recommended Standards
- 4-Bromo-1-(2-fluoroethyl)-1,2-dihydro-3h-pyrazol-3-imine (CAS 1427021-94-0)
- 2-Bromo-3-nitrothiophene (CAS 2161-96-8)
- 2-Bromo-5-nitrothiophene (CAS 13195-50-1)
- 5-Hydroxy-2'-(pyrrolidine-3-carbonyl)-[1,1'-biphenyl]-3-carboxylic acid (CAS 1261900-38-2)
- (E)-2,4-dimethylbenzaldehyde oxime (CAS 141304-07-6)
- 1-Chloro-2-phenoxybenzene (CAS 2689-07-8)
- Luliconazole Impurity 14 (CAS CATO-C4X-285314)
- 1-(Oxetan-3-ylmethyl)-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1578484-07-7)
- N-Cyclobutylidene-2-methylpropane-2-sulfinamide (CAS 1191456-53-7)
- Semaglutide Sodium Salt (CAS CATO-C4X-222620)
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