4-哌啶酮 4-Piperidone 40064-34-4
N-甲基-4-哌啶酮 1-Methyl-4-piperidone 1445-73-4 微黄液体
N-乙基-4-哌啶酮 1-Ethyl-4-Piperidone 3612-18-8