alpha-Bromostyrene
- CAS NO.：98-81-7
- Empirical Formula: C8H7Br
- Molecular Weight: 183.05
- MDL number: MFCD00012229
- EINECS: 202-702-4
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:52:17
What is alpha-Bromostyrene?
Chemical properties
ALPHA-Bromostyrene is a clear yellow liquid or Pale yellowish mobile liquid. Almost insoluble in water, soluble in alcohol and oils. B.P. approximately 190℃. (decompose.). Pungent-sweet, gassy-floral odor, reminiscen~ of Hyacinth in extreme dilution. Slightly softer than the odor of omega-Bromostyrol.
The Uses of alpha-Bromostyrene
(1-Bromoethenyl)-benzene is a useful synthetic intermediate. It is a reactant used to synthesize Potassium (1-Phenylcyclopropyl)trifluoroborate (P698400). It can also be used in the synthesis of substituted cyclopentenones.
The Uses of alpha-Bromostyrene
alpha-Bromostyrene has been suggested as a modifier for the classic chemical omega-Bromostyrol, but does not seem to offer significant advantages. alpha-Bromostyrol is easily hydrolyzed in the presence of water or mild acid to Aceto-phenone (which will affect the odor type significantly).
Preparation
From Styrene by treatment with Bromine. The resulting Styrene dibromide is treated with alcoholic KOH to yield alpha-Bromostyrol.
Properties of alpha-Bromostyrene
| Melting point: | −44 °C(lit.) |
| Boiling point: | 67-70 °C4 mm Hg(lit.) |
| Density | 1.41 g/mL at 25 °C(lit.) |
| refractive index | n |
| Flash point: | 188 °F |
| storage temp. | 2-8°C |
| solubility | Chloroform, Methanol |
| form | Liquid |
| color | Clear colorless to yellow |
Safety information for alpha-Bromostyrene
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for alpha-Bromostyrene
New Products
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![TRANS-(E)-1-BROMO-2-[4-[2-(DIMETHYLAMINO)ETHOXY]PHENYL]-1,2-DIPHENYLETHENE](https://img.chemicalbook.in/StructureFile/ChemBookStructure7/GIF/CB7284074.gif)
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