Formula C5H8O Appearance colorless liquid Melting point −78 °C (−108 °F; 195 K) | Density 871 kg/m³ Pubchem 5321950 Flash point 65 °C (149 °F; 338 K) | |
 | ||
Related alkenals Boiling point 116 to 119 °C (241 to 246 °F; 389 to 392 K) (752 mm Hg) | ||
trans-2-Methyl-2-butenal is an organic compound with the formula CH3CH=C(CH3)CHO. This colorless liquid is a building block in organic synthesis. It is an α,β-unsaturated aldehyde related to the better-known crotonaldehyde. The European rabbit, Oryctolagus cuniculus, uses 2-methyl-2-butenal as a pheromone. The rabbit pheromone, trans-2-methyl-2-butenal, was reported to be involved in the communication between species, defined under the class of "interomone."
References
Trans-2-Methyl-2-butenal Wikipedia(Text) CC BY-SA