。 CH3CHO acetaldehyde ( CH3 )2CHCHO 2-methylpropanal C6 H5 CH(CH3 )CHO 2-phenylpropanal HC= CCH2 CH2CH(CH3 CH2CHO 3-methyl-6-heptynal CH3 CocH3 acetone CH3 CoCH2CH3 2-butanone CH3CO(CH2 )3 CH3 2-hexanone CH3 CoCH2coCH2cH3 2 4-hexanedione )COCH3 acetophenone COCH2CH3 1-cyclohexyl-l-prpanone 國心圆CH3CHO acetaldehyde (CH3)2CHCHO 2-methylpropanal C6H5CH(CH3)CHO 2-phenylpropanal HC≡ CCH2CH2CH(CH3)CH2CHO 3-methyl-6-heptynal CH3COCH3 acetone CH3COCH2CH3 2-butanone CH3CO(CH2)3CH3 2-hexanone CH3COCH2COCH2CH3 2,4-hexanedione COCH3 acetophenone COCH2CH3 1-cyclohexyl-1-prpanone