2-Dimethylaminoethanol丹醇, 2-二甲氨基乙醇 DiMethyl Amino Ethanol二甲氨基乙醇 Departamento Municipal de Água e Esgoto (Portugese; Porto Alegre, Brazil)Departamento Municipal de Água e Esgoto (Portugese; Porto Alegre, Brazil) dimethylaminoethanol二甲氨基乙醇