Whipcide

Ftalofyne

Phthalofyne

2-(1-ethyl-1-methyl-prop-2-ynoxy)carbonylbenzoic acid

Phthalic acid hydrogen 1-(1-ethyl-1-methyl-2-propynyl)

Phthalic acid hydrogen 1-(3-methyl-1-pentyn-3-yl) ester