5-Bromothiophene-2-carbonyl Chloride CAS 31555-60-9
| CAS No. | 31555-60-9 |
| Molecular Formula | C5H2BrClOS |
| Molecular Weight | 225.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Bromothiophene-2-carbonyl Chloride is closely related to sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-Bromothiophene-2-carbonyl Chloride (CAS 31555-60-9), a certified reference material (molecular formula C5H2BrClOS, MW 225.49 g/mol) for analytical method development and quality control.
Structurally, 5-Bromothiophene-2-carbonyl Chloride (C5H2BrClOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 225.49 g/mol, it falls into the medium-molecular-weight range. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C5H2BrClOS |
| Molecular Weight | 225.49 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl/Br-containing |
| Sulfur Atoms | 1 |
Related Bromothiophene Standards
- 2-Bromothiophene-3-carbonyl chloride (CAS 197370-13-1)
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Recommended Standards
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