2478-93-5 Methylisopropoxy-(2-dimethylaminoethylthio)phosphine oxide oxalate Phosphonothioic acid, methyl-, O-isopropyl-S-(2-(dimethylamino)ethyl)ester, oxalate Phosphonothioic acid, methyl-, S-(2-(dimethylamino)ethyl) O-isopropyl ester, oxalate