63980-92-7 Ethanethiol, 2-((4-methylaminobutyl)amino)-, dihydrogen phosphate (ester) tetrahydrate Phosphorothioic acid, S-(2-((4-methylaminobutyl)amino)ethyl) ester, tetrahydrate Phosphorothioic acid, S-ester with 2-((4-methylaminobutyl)amino)ethanethiol, tetrahydrate S-2-((4-Methylaminobutyl)amino)ethyl dihydrogen phosphorothioate tetrahydrate