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Isosafrole

Isosafrole^[1]


IUPAC name	(E)-5-(Prop-1-enyl)benzo[d][1,3]dioxole
Other names	5-(1-Propenyl)-1,3-benzodioxole 3,4-Methylenedioxyphenyl-1-propene
Identifiers
CAS number	trans: 120-58-1
SMILES	C/C=C/C1=CC=C2C(OCO2)=C1
Properties
Molecular formula	C₁₀H₁₀O₂
Molar mass	162.188 g/mol
Density	trans: 1.1206 g/cm³ cis: 1.1182 g/cm³
Melting point	trans: 8.2 °C cis: -21.5 °C
Boiling point	trans: 253 °C cis: 77-79 @ 3.5 mmHg
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Isosafrole is an aromatic organic chemical with a smell similar to anise or licorice. It is found in small amounts in various essential oils, but is most commonly obtained by isomerizing the plant oil safrole.

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It forms two geometric isomers: cis-isosafrole and trans-isosafrole.

Isosafrole is a precursor for MDP2P which is converted into the psychoactive drug MDMA ('ecstasy'). As such requires permits to purchase or sell in any significant quantity in the US.