3-Bromo-2-chlorothiophene CAS 40032-73-3
| CAS No. | 40032-73-3 |
| Molecular Formula | C4H2BrClS |
| Molecular Weight | 197.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to sulfur-containing functionality, chlorine/bromine substitution, 3-Bromo-2-chlorothiophene is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 197.48 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.
CATO supplies 3-Bromo-2-chlorothiophene (CAS 40032-73-3), a certified reference material (molecular formula C4H2BrClS, MW 197.48 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-Bromo-2-chlorothiophene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H2BrClS |
| Molecular Weight | 197.48 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
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- 3-Bromo-4-chlorothiophene (CAS 36155-88-1)
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Recommended Standards
- 2,4-Dichlorobenzyl Chloride-d2 (CAS 1246817-90-2)
- 4-Chloro-1-(difluoromethyl)-3-nitro-1h-pyrazole (CAS 1245773-01-6)
- 1,2-Dichloroethane-1-sulfonyl chloride (CAS 84501-81-5)
- 3-Chloro-6-hydroxy-4-(trifluoromethyl)pyridine (CAS 109919-31-5)
- 2-(Hydroxymethyl)-5-(trifluoromethoxy)phenol (CAS 1261829-86-0)
- 2-bromo-7-chloro-3H-imidazo[4,5-b]pyridine (CAS 1401687-53-3)
- 2-(((5-Chlorothiophen-2-yl)methyl)(methyl)amino)acetamide (CAS 1291666-88-0)
- 5-[2-(4-Fluoroanilino)vinyl]-3-(methylsulfanyl)-4-isothiazolecarbonitrile (CAS 338751-14-7)
- Riboflavin Impurity 13 (CAS 4250-90-2)
- 4-Fluoropyrazolo[1,5-a]pyridine-2-carboxylic acid (CAS 1273312-59-6)
- Tolperisone Impurity 5 (CAS 756433-31-5)
- 1-(2-Bromobenzyl)azepane (CAS 331855-50-6)
- 1-(6-Methylpyridin-2-yl)-2-(quinolin-6-yl)ethanone (CAS 476472-48-7)
- Des-Ile17-Tirzepatide (CAS CATO-CPTD788956)
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