3-Bromothiophene-2-carbonylchloride CAS 25796-68-3
| CAS No. | 25796-68-3 |
| Molecular Formula | C5H2BrClOS |
| Molecular Weight | 225.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Bromothiophene-2-carbonylchloride is closely related to sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3-Bromothiophene-2-carbonylchloride (CAS 25796-68-3), a certified reference material (molecular formula C5H2BrClOS, MW 225.49 g/mol) for analytical method development and quality control.
3-Bromothiophene-2-carbonylchloride (C5H2BrClOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H2BrClOS |
| Molecular Weight | 225.49 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 3-Bromo-5-chlorothiophene-2-carbaldehyde (CAS 403640-46-0)
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- 5-Bromo-3-chlorothiophene-2-carbaldehyde (CAS 1503406-39-0)
- 5-Bromo-2-chlorothiophene-3-carbaldehyde (CAS 120759-16-2)
- (E)-2-Cyano-3-(5-((E)-4-(diphenylamino)styryl)furan-2-yl)acrylic acid (CAS 1096712-02-5)
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- 6-methoxybenzofuran-5-amine (CAS 1368293-67-7)
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- 17-DMAG hydrochloride (CAS 467214-21-7)
- (E)-2-((4S,5R)-4,5-Diphenyl-4,5-dihydrooxazol-2-yl)-2-((4S,5R)-4,5-diphenyloxazolidin-2-ylidene)acetonitrile (CAS 1192113-21-5)
- 3,4-Dibromo-6-chloro-1H-indazole (CAS 887568-34-5)
- D-Ser12-Semaglutide (CAS CATO-C4X-2226240)
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