| CAS No. | 1708079-52-0 |
| Molecular Formula | C9H6Br2O3S |
| Molecular Weight | 354.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 354.02 g/mol gives Methyl 4,5-dibromo-3-(prop-2-yn-1-yloxy)thiophene-2-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Methyl 4,5-dibromo-3-(prop-2-yn-1-yloxy)thiophene-2-carboxylate (CAS 1708079-52-0), molecular formula C9H6Br2O3S and molecular weight 354.02 g/mol, is a CATO reference standard with documented purity and traceability.
Methyl 4,5-dibromo-3-(prop-2-yn-1-yloxy)thiophene-2-carboxylate (C9H6Br2O3S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. It is notably hygroscopic, 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.
| Molecular Formula | C9H6Br2O3S |
| Molecular Weight | 354.02 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |