3,4-Dibromothiophene 1,1-dioxide CAS 89088-96-0
| CAS No. | 89088-96-0 |
| Molecular Formula | C4H2Br2O2S |
| Molecular Weight | 273.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-Dibromothiophene 1,1-dioxide (CAS 89088-96-0) is a high-purity analytical reference standard with the molecular formula C4H2Br2O2S and a molecular weight of 273.93 g/mol.
3,4-Dibromothiophene 1,1-dioxide (C4H2Br2O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; 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 | C4H2Br2O2S |
| Molecular Weight | 273.93 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Dibromothiophene Standards
- 2,5-Dibromothiophene 1,1-Dioxide (CAS 89088-95-9)
- 2,4-Dibromothiophene-3-carbaldehyde (CAS 1257070-67-9)
- 3,4-Dibromothiophene-2-carbaldehyde (CAS 32896-02-9)
- 4,5-Dibromothiophene-2-carbaldehyde (CAS 38071-22-6)
- 4,5-Dibromothiophene-3-carbaldehyde (CAS 61200-56-4)
- 2,4-Dibromothiophene-3-carbonitrile (CAS 1256651-68-9)
- 4,5-Dibromothiophene-3-carbonitrile (CAS 1823961-00-7)
- 2,5-Dibromothiophene-3-carbonitrile (CAS 18792-01-3)
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