4-Bromo-2-iodothiophene CAS 73882-40-3
| CAS No. | 73882-40-3 |
| Molecular Formula | C4H2BrIS |
| Molecular Weight | 288.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to sulfur-containing functionality, bromine/iodine substitution, 4-Bromo-2-iodothiophene is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 288.93 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
4-Bromo-2-iodothiophene (CAS 73882-40-3) is a high-purity analytical reference standard with the molecular formula C4H2BrIS and a molecular weight of 288.93 g/mol.
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 | C4H2BrIS |
| Molecular Weight | 288.93 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.) | 1978 |
| Halogen Content | Br/I-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
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- 4-[ethyl(methyl)carbamoyl]benzoic acid (CAS 1155169-09-7)
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