methylium[医] 甲基methyln.甲基；木精methylaminoheptane甲庚胺methylbenzethonium[医] 甲基苄甲乙氧铵, 迪阿帕伦(局部杀菌药)methylchlorpyrifos甲基毒死蜱methylolacrylamiden.羟甲基丙烯酰胺Methyl Nitrosourea甲基亚硝脲[烷化剂抗肿瘤药]methyl-histidine甲基组氨酸methylboronic acid甲基硼酸methylpropiothetin甲基丙噻亭methylene triamine三亚硝基三亚甲基三胺methyldethiobiotin甲基去硫生物素(抗代谢抗生素)

1. Betaine is a methyl donor which is more effective than the methionine or choline and has a high biological value.
   甜菜碱是一种比蛋氨酸或胆碱更为有效的甲基供体，具有很高的生物效价。