N-METHYLDIETHANOLAMINE甲氨基二乙醇Methyl diethanolamineN-甲基二乙醇胺N-MethyldiethanolamineMDEAN,N-Bis(2-hydroxyethyl)methylamineBis(2-hydroxyethyl)methylamine2,2′-MethyliminodiethanolN,N-双(2-羟乙基)甲胺2-Hydroxy-1-[(2-hydroxyethyl)methylamino]-ethylBis(hydroxyethyl)methylamine2,2'-Methyliminodiethanol