2,4-cyclohexadiene-1-carboxylic acid, 4-ethyl-, 3-hydroxypropyl ester 3-hydroxypropyl 4-ethylcyclohexa-2,4-diene-1-carboxylate InChI=1/C12H18O3/c1-2-10-4-6-11(7-5-10)12(14)15-9-3-8-13/h4-6,11,13H,2-3,7-9H2,1H