2,3-Dibromo-5-chlorothiophene CAS 60404-19-5
| CAS No. | 60404-19-5 |
| Molecular Formula | C4HBr2ClS |
| Molecular Weight | 276.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2,3-Dibromo-5-chlorothiophene.
2,3-Dibromo-5-chlorothiophene (CAS 60404-19-5), molecular formula C4HBr2ClS and molecular weight 276.38 g/mol, is a CATO reference standard with documented purity and traceability.
2,3-Dibromo-5-chlorothiophene (C4HBr2ClS) 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. 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).
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 | C4HBr2ClS |
| Molecular Weight | 276.38 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.) | 1974 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 2,2-Diethyl-4,5-diphenyl-2H-imidazole (CAS 55682-35-4)
- 2-Amino-4-(propan-2-ylsulfanyl)-6-(thiophen-2-yl)pyrimidine-5-carbonitrile (CAS 478067-17-3)
- 1-Benzyl-4-phenylpiperidine-4-carbonitrile (CAS 56243-25-5)
- 2-Amino-4-(propylsulfanyl)-6-(thiophen-2-yl)pyrimidine-5-carbonitrile (CAS 478067-19-5)
- 2-(4-Chlorophenoxy) Propionic Acid (CAS 3307-39-9)
- N-Methyl-1-(5-phenyl-1,3,4-oxadiazol-2-yl)methanamine hydrochloride (CAS 1158371-89-1)
- 886369-68-2 2,2,2-Trifluoro-1-(3,4,5-trifluorophenyl)ethan-1-one DTXSID70645220 (CAS 886369-68-2)
- Cis-3-methylenedecahydrocycloocta[b]furan (CAS 112701-82-3)
- 2-Bromo-6-iodo-3-methylpyridine (CAS 1805025-35-7)
- 2-Fluoro-5H-pyrrolo[2,3-b]pyrazine-6-carboxylic acid (CAS 1016241-84-1)
- N,N-diethyl-3,4,5-trimethyl-1H-pyrrole-2-carboxamide (CAS 58803-92-2)
- Palmitoylethanolamide-d (CAS 946524-34-1)
- 4,4'-(((2-Bromo-5-iodo-1,4-phenylene)bis(oxy))bis(methylene))bis(2,2-dimethyl-1,3-dioxolane) (CAS 1956375-89-5)
- D-Ile27-Tirzepatide (CAS CATO-CPTD788907)
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