methylbisβ-chloroethyl aminemethyln.甲基；木精methyl benzoylacetate苯甲酰乙酸甲酯methylglycopyranoside甲基吡喃糖苷methylphenidylacetate哌醋甲醋(精神振奋药)methylmalonicaciduria甲基丙二酸尿症methylglucofuranoside甲基呋喃果糖苷methyl violet tracing甲基紫示踪法methylisobutyl ketone甲基异丁基甲酮methylene dicarbamide亚甲基二脲methylhyoscini nitras硝甲东莨菪碱methyl benzothiophene甲基苯并噻吩