5-Bromo-2,3-dichlorothiophene CAS 83663-36-9
| CAS No. | 83663-36-9 |
| Molecular Formula | C4HBrCl2S |
| Molecular Weight | 231.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Bromo-2,3-dichlorothiophene is closely related to sulfur-containing functionality, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Bromo-2,3-dichlorothiophene (CAS 83663-36-9) is a high-purity analytical reference standard with the molecular formula C4HBrCl2S and a molecular weight of 231.93 g/mol.
5-Bromo-2,3-dichlorothiophene (C4HBrCl2S) contains sulfur-containing functionality, 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.
As a certified reference material (CRM), 5-Bromo-2,3-dichlorothiophene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C4HBrCl2S |
| Molecular Weight | 231.93 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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.) | 1980 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 2-Bromo-3,5-dichlorothiophene (CAS 1536984-16-3)
- 3-Bromo-2,5-dichlorothiophene (CAS 60404-18-4)
- 4-Bromo-2,3-dichlorothiophene (CAS 2657622-91-6)
- 1-bromo-2-bromoÂmethyl-3-hydroxy-propanÂe (CAS 106023-63-6)
- 6-Bromo-8-fluoro-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (CAS 1816253-36-7)
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- 2-(2-Bromo-4,5-difluorophenyl)acetonitrile (CAS 1017581-66-6)
- (3-Bromo-2-methoxypyridin-4-yl)boronic acid (CAS 1072946-00-9)
Recommended Standards
- Lutetium fluoride(III), 99.99% trace metals basis (CAS 13760-81-1)
- (3-Acetyl-5-(trifluoromethyl)phenyl)boronic acid (CAS 824390-21-8)
- 3,5-Dichloro-4-(trifluoromethyl)pyridin-2-ol (CAS 109919-33-7)
- Bis(2-bromoethyl) Ether (CAS 5414-19-7)
- Methyl 3-methylpent-2-enoate (CAS 50652-79-4)
- Tert-butyl (2S,3R)-3-(hydroxymethyl)-2-methylazetidine-1-carboxylate (CAS 2088511-47-9)
- (1-(6-Nitroquinoxalin-2-yl)pyrrolidin-3-yl)methanol (CAS 1417794-35-4)
- Adamantan-1-yl(methyl)silane (CAS 82690-39-9)
- 2-(3-Methylpyrrolidin-1-yl)-2-oxoacetic acid (CAS 1251118-37-2)
- 3-aminobicyclo[1.1.1]pentane-1-carbonitrile (CAS 1936643-30-9)
- Cholestane-3 β,5α,6α-triol (CAS 35089-25-9)
- 2,2,2-Trifluoro-1-phenyl-1-(pyridin-2-yl)ethan-1-ol (CAS 346647-42-5)
- Quinoline Impurity 23 (CAS 423126-64-1)
- Liraglutide Impurity 6 TFA Salt (CAS CATO-C4X-19926)
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