3-Bromo-5-chlorobenzofuran CAS 36739-99-8
| CAS No. | 36739-99-8 |
| Molecular Formula | C8H4BrClO |
| Molecular Weight | 231.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H4BrClO, 3-Bromo-5-chlorobenzofuran contains a hydroxyl group, an ether linkage, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 231.47 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-Bromo-5-chlorobenzofuran (CAS 36739-99-8), molecular formula C8H4BrClO and molecular weight 231.47 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C8H4BrClO |
| Molecular Weight | 231.47 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1967 |
| Halogen Content | Cl/Br-containing |
Related Bromo Standards
- 5-Bromo-7-chlorobenzofuran (CAS 1194375-29-5)
- 7-Bromo-3-chlorobenzofuran (CAS 1368229-56-4)
- 5-Bromo-4-chloro-1-benzofuran (CAS 1427324-99-9)
- 6-Bromo-5-chloro-1-benzofuran (CAS 1427368-44-2)
- 4-Bromo-6-chlorobenzofuran (CAS 1427377-74-9)
- 7-Bromo-6-chloro-1-benzofuran (CAS 1427404-45-2)
- 4-Bromo-5-chloro-1-benzofuran (CAS 1427405-29-5)
- 2-Bromo-7-chlorobenzofuran (CAS 2274076-22-9)
Recommended Standards
- 3-Bromo-6-chlorobenzofuran (CAS 36739-97-6)
- 2,4,6-Trichloroisophthalonitrile (CAS 19861-59-7)
- 4-Bromo-7-chlorobenzofuran (CAS 855343-01-0)
- 7-Bromo-4-chloro-1-benzofuran (CAS 325486-41-7)
- 4-Bromo-3-(difluoromethyl)benzoyl chloride (CAS 2764671-62-5)
- 5-(5,7-Dichlorobenzo[d]oxazol-2-yl)-2-methylaniline (CAS 380882-58-6)
- 2-bromopyrimidin-5-amine (CAS 56621-91-1)
- 3-(Azetidin-3-ylmethyl)pyridine dihydrochloride (CAS 1864060-51-4)
- 5-Acetylquinoline-3-carboxylic acid (CAS 1854893-53-0)
- (2S,3R,4R,5R)-5-(benzyloxymethyl)-4-[tert-butyl(dimethyl)silyl]oxy-2-(3-fluorophenyl)-3-methoxy-tetrahydrofuran-2-ol (CAS 1583260-03-0)
- (4-(Chlorocarbonyl)-3-fluorophenyl)boronic acid (CAS 1313712-87-6)
- 1-(4-(Trifluoromethyl)phenyl)-1H-pyrazole-3-carboxylic acid (CAS 1143521-43-0)
- Prilocaine EP Impurity E (CAS 744961-76-0)
- Liraglutide(5-31)TFA Salt (CAS CATO-C4X-19924)
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