3-Bromo-2-iodobenzo[b]thiophene CAS 140898-76-6
| CAS No. | 140898-76-6 |
| Molecular Formula | C8H4BrIS |
| Molecular Weight | 338.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to sulfur-containing functionality, bromine/iodine substitution, an aromatic ring system, 3-Bromo-2-iodobenzo[b]thiophene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 338.99 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
3-Bromo-2-iodobenzo[b]thiophene (CAS 140898-76-6) is a high-purity analytical reference standard with the molecular formula C8H4BrIS and a molecular weight of 338.99 g/mol.
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.
As a certified reference material (CRM), 3-Bromo-2-iodobenzo[b]thiophene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H4BrIS |
| Molecular Weight | 338.99 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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.) | 1997 |
| Halogen Content | Br/I-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 5-Bromo-2-iodobenzo[b]thiophene (CAS 306762-46-9)
- 1-(2-Bromo-6-fluoro-3-(trifluoromethyl)phenyl)-2,2,2-trifluoroethan-1-one (CAS 1515433-83-6)
- 2-Bromo-4-n-butyliodobenzene (CAS 1160574-93-5)
- 2-Bromo-4-cyclopropoxy-1-iodobenzene (CAS 1243322-56-6)
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- 1-Bromo-3-cyclopropoxy-2-iodobenzene (CAS 1243401-76-4)
- 2-Bromo-1-cyclopropoxy-4-iodobenzene (CAS 1243446-45-8)
Recommended Standards
- H-3,5-Dibromo-Tyr-OH (CAS 300-38-9)
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- 2-(Difluoromethoxy)-5-iodo-3-(trifluoromethyl)pyridine (CAS 1803729-60-3)
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- 6-(Piperidin-4-yl)pyridine-3-carbonitrile (CAS 845788-61-6)
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- N-Octane-d18 (CAS 17252-77-6)
- Trans-3-hydroxy-1-(4-methoxyphenyl)cyclobutane-1-carboxylic acid (CAS 2031242-16-5)
- 2-(2-Chloroethyl)benzaldehyde (CAS 60355-20-6)
- Ethyl 5-fluoro-2-nitrobenzoate (CAS 364-51-2)
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