3-Bromo-2-methylpropene
Synonym(s):Methallyl bromide;Methylallyl bromide
- CAS NO.：1458-98-6
- Empirical Formula: C4H7Br
- Molecular Weight: 135
- MDL number: MFCD00134155
- EINECS: 604-496-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-27 22:56:58
What is 3-Bromo-2-methylpropene?
Chemical properties
clear colorless to yellow liquid
The Uses of 3-Bromo-2-methylpropene
3-Bromo-2-methylpropene is used as a general reagent for various organic reactions and primarily for amino acid synthesis and asymmetric amino acid synthesis.
The Uses of 3-Bromo-2-methylpropene
3-Bromo-2-methylpropene may be used:
- in the synthesis of alkenyl imines
- in the synthesis of 2-methylpropenyl (“methallyl”) complex, Cp*Os(η3-allyl)Br2
- in a study of chiral phase transfer alkylation leading to (S)-α-alkylcysteines
General Description
Rotational isomerism in 3-bromo-2-methylpropene has been studied by IR spectroscopy.
Properties of 3-Bromo-2-methylpropene
| Melting point: | -115.07°C (estimate) |
| Boiling point: | 94-95 °C (lit.) |
| Density | 1.339 g/mL at 25 °C (lit.) |
| refractive index | n |
| Flash point: | 44 °F |
| storage temp. | 2-8°C |
| solubility | Chloroform, Ethyl Acetate |
| form | Oil |
| Specific Gravity | 1.339 |
| color | Clear Colourless to Pale Yellow |
| Stability: | Light Sensitive |
| CAS DataBase Reference | 1458-98-6(CAS DataBase Reference) |
Safety information for 3-Bromo-2-methylpropene
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07  Environment GHS09 |
| GHS Hazard Statements |
H225:Flammable liquids H314:Skin corrosion/irritation H411:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. 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 3-Bromo-2-methylpropene
| InChIKey | USEGQJLHQSTGHW-UHFFFAOYSA-N |
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