1-Bromo-2-methyl-1-propene
ALDRICH/277142 - 98%
Synonym: Isocrotyl bromide
CAS Number: 3017-69-4
Empirical Formula (Hill Notation): C4H7Br
Molecular Weight: 135.00
MDL Number: MFCD00009885
Linear Formula: (CH3)2C=CHBr
Product Type: Chemical
| assay | 98% |
| bp | 92 °C (lit.) |
| density | 1.318 g/mL at 25 °C (lit.) |
| form | liquid |
| functional group | alkyl halide |
| bromo | |
| InChI | 1S/C4H7Br/c1-4(2)3-5/h3H, |
| InChI key | DEFNUDNHTUZJAL-UHFFFAOYSA |
| Quality Level | 100 ![]() |
| refractive index | n |
| SMILES string | CC(C)=CBr |
| storage temp. | 2-8°C |
| Application: | 1-Bromo-2-methyl-1-propen • preparation of esters of 2,4-dienoic acids via palladium catalyzed reaction with methyl acrylate in the presence of triethylamine • total synthesis of ocular age pigment, A2-E • synthesis of 3-nor-geraniol [2H2] |
| Other Notes: | May darken in storage |
| Packaging: | 10, 50 g in ampule |
| Symbol | ![]() GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225 - H315 - H319 - H335 |
| Precautionary statements | P210 - P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | F,Xi |
| Risk Statements | 11-36/37/38 |
| Safety Statements | 16-26-33 |
| RIDADR | UN 1993BE 3 / PGII |
| WGK Germany | WGK 3 |
| Flash Point(F) | 44.6 °F - closed cup |
| Flash Point(C) | 7 °C - closed cup |
| Purity | 98% |
| bp | 92 °C (lit.) |
| Density | 1.318 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352100 |



