5-Bromo-3-chlorothiophene-2-carboxylic acid CAS 842135-76-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 842135-76-6 |
| Molecular Formula | C5H2BrClO2S |
| Molecular Weight | 241.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-Bromo-3-chlorothiophene-2-carboxylic acid (CAS 842135-76-6), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C5H2BrClO2S. Molecular weight: 241.49 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C5H2BrClO2S |
| Molecular Weight | 241.49 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 5-bromo-4-chloro-thiophene-2-carboxylic acid (CAS 123418-69-9)
- 2-Bromo-5-chlorothiophene-3-carboxylic acid (CAS 1379306-17-8)
- 4-Bromo-3-chlorothiophene-2-carboxylic acid (CAS 1401992-28-6)
- 3-Bromo-5-chlorothiophene-2-carboxylic acid (CAS 60729-38-6)
- 4-Bromo-5-chlorothiophene-2-carboxylic Acid (CAS 60729-37-5)
- 6-bromo-1-chloro-naphthalene (CAS 1000391-24-1)
- 4-Bromo-3-chloro-2-fluorothiophenol (CAS 1160574-65-1)
- 4-Bromo-2-chloro-6-fluorobenzenethiol (CAS 1208074-77-4)
Recommended Standards
- 2,2,2-Trichloro-1-(1,3-dimethyl-1H-pyrazol-4-yl)ethanone (CAS 1306738-48-6)
- 2,2,2-Trichloro-1-(1-ethyl-1H-pyrazol-4-yl)-ethanone (CAS 1306739-19-4)
- 2,2,2-Trichloro-1-(1,5-dimethyl-1H-pyrazol-4-yl)ethan-1-one (CAS 1306739-77-4)
- Dichloro[1,2-di(methoxy-ÎșO)ethane]cobalt (CAS 18346-58-2)
- 2-Propenoic acid, 2-methyl-, methyl ester, polymer with chloroethene, 1,1-dichloroethene and ethyl 2-propenoate (CAS 25750-24-7)
- 2-(2-((3-Methylcyclohexyl)amino)ethoxy)ethan-1-ol (CAS 1024319-08-1)
- 4-Chloro-5-(difluoromethyl)-3-nitropyridine-2-sulfonamide (CAS 1805272-96-1)
- Methyl (2S,4S)-4-(2,4,5-trichlorophenoxy)-2-pyrrolidinecarboxylate hydrochloride (CAS 1354488-48-4)
- 5-Iodo-2-furaldehyde (CAS 2689-65-8)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com