2-Bromo-4,5-dichlorothiazole CAS 57314-09-7
| CAS No. | 57314-09-7 |
| Molecular Formula | C3BrCl2NS |
| Molecular Weight | 232.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Bromo-4,5-dichlorothiazole (C3BrCl2NS) contains a nitrile group, 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
2-Bromo-4,5-dichlorothiazole (CAS 57314-09-7), molecular formula C3BrCl2NS and molecular weight 232.91 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C3BrCl2NS |
| Molecular Weight | 232.91 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2,3,5,6-Tetrachloropyridin-4-ol (CAS 2322-38-5)
- (3-Cyano-2-fluoro-4-(trifluoromethyl)phenyl)boronic acid (CAS 1338229-42-7)
- 2,3,5,6-Tetrachloropyridine 1-oxide (CAS 18032-57-0)
- 3,4,5,6-Tetrachloropyridin-2-ol (CAS 17368-22-8)
- (R)-3-(p-tolyl)-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazol-5-ol (CAS 2135829-66-0)
- Methyl 2-(4-chlorobenzamido)-5-((2-ethoxyphenyl)carbamoyl)-4-methylthiophene-3-carboxylate (CAS 335409-10-4)
- 2-Methoxy-N-(piperidin-3-yl)benzamide hydrochloride (CAS 31648-48-3)
- Mefatinib Impurity 6 (CAS 1417695-76-1)
- tert-Butyl (R)-(1-((1-(4-(2-(2-(1h-tetrazol-5-yl)ethyl)phenyl)piperidin-1-yl)-1-oxo-5-phenylpentan-2-yl)amino)-2-methyl-1-oxopropan-2-yl)carbamate (CAS 170838-16-1)
- 1-((5-Bromo-4-(piperazin-1-yl)pyridin-3-yl)sulfonyl)-4-isopropylpiperazine (CAS 1352518-02-5)
- 5-[(2,4-Dichlorophenyl)methylene]-4-oxo-2-thioxo-3-thiazolidinebutanoic acid (CAS 300378-68-1)
- 4-Bromomethyl-2-methoxy-3-(trifluoromethyl)pyridine (CAS 1227572-39-5)
- 6-[(Tetrahydro-2H-pyran-4-yl)methoxy]pyrimidine-4-carboxylic acid (CAS 1439896-43-1)
- Semaglutide impurity 202 (CAS CATO-C4X-2226202)
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