2,5-Dibromobenzo[b]thiophene CAS 7312-17-6
| CAS No. | 7312-17-6 |
| Molecular Formula | C8H4Br2S |
| Molecular Weight | 291.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 291.99 g/mol gives 2,5-Dibromobenzo[b]thiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,5-Dibromobenzo[b]thiophene (CAS 7312-17-6), molecular formula C8H4Br2S and molecular weight 291.99 g/mol, is a CATO reference standard with documented purity and traceability.
2,5-Dibromobenzo[b]thiophene (C8H4Br2S) contains sulfur-containing functionality, bromine substitution, an aromatic ring system. 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 | C8H4Br2S |
| Molecular Weight | 291.99 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Dibromobenzo Standards
- 4,7-dibromobenzo[b]thiophene (CAS 1391908-40-9)
- 4,7-Dibromobenzo[c]thiophene (CAS 1473425-58-9)
- 5,7-Dibromobenzo[d]isoxazol-3-amine (CAS 89583-81-3)
- 5,7-Dibromobenzo[d]isoxazol-3(2H)-one (CAS 66571-28-6)
- 2,7-Dibromobenzo[d]thiazole, 97% (CAS 1188090-10-9)
- 2,4-Dibromobenzo[d]thiazole (CAS 887589-19-7)
- 4,6-Dibromobenzo[d]thiazole (CAS 700-48-1)
- 4,7-Dibromobenzo[d]thiazole (CAS 2089292-19-1)
Recommended Standards
- 2,3',4,5-Tetrachlorobiphenyl (CAS 73575-53-8)
- Brexpiprazole Impurity 136 (CAS 2657666-89-0)
- 3,4-Dibromo-3-methyl-1λ6-thiolane-1,1-dione (CAS 17536-53-7)
- Aroclor 1248 (CAS 12672-29-6)
- (E)-3-Methyl-4-((methylthio)methylene)isoxazol-5(4H)-one (CAS 61861-35-6)
- 2,2,2-Trifluoro-1-(2-methyl-4-propoxyphenyl)ethan-1-one (CAS 1443314-32-6)
- 2-(4-Fluorophenyl)-2,3-dihydrobenzo[b][1,4]thiazepin-4(5H)-one (CAS 141944-00-5)
- Dimesitylammonium Pentafluorobenzenesulfonate (CAS 850629-65-1)
- 4-(3-(3-Hydroxybenzoyl)-1H-pyrrolo[2,3-b]pyridin-5-yl)benzamide (CAS 858118-39-5)
- 1-(Prop-2-yn-1-yl)-3-(o-tolyl)urea (CAS 1437385-02-8)
- 2-Methyl-1-(1-methylpyrazol-4-yl)propan-1-amine dihydrochloride (CAS 2173992-00-0)
- 2-Amino-6-(2-fluorophenyl)pyrimidin-4(3H)-one (CAS 98305-60-3)
- 6-Amino-7-dimethylphosphoryl-indan-1-one (CAS 2267330-81-2)
- Semaglutide impurity 237 (CAS CATO-C4X-2226237)
Why CATO?
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