2-hydroxymethyl-1,1,3-trimethyl-3,5-cyclohexadiene

Ethyl 2,6,6-trimethyl-1,3-cyclohexadiene-1-carboxylate

1-hydroxymethyl-2,6,6-trimethylcyclohexa-1,3-diene

4-hydroxy-2,6,6-trimethylcyclohex-1-enecarbaldehyde

盐酸