2-phenylpropanal(1-formylethyl)-benzene2-phenyl-1-propanal2-phenylpropanal2-phenylpropionaldehydealpha-formylethylbenzenealpha-methyl-alpha-toluic aldehydealpha-methylbenzeneacetaldehydealpha-methylphenylacetaldehydealpha-phenylpropionaldehydecumene aldehydehyacinthalhydratropa aldehydehydratropaldehydehydratropic aldehydehydrotropic aldehyde