2,2-Dichlor-1,1-dihydroxy-aethanphosphonsauremethyl ester naturiumsalz [German] 2,2-Dichloro-1,1-dihydroxy-ethanephosphonic acid methyl ester sodium salt 64357-27-3 Phosphonic acid, (2,2-dichloro-1,1-dihydroxyethyl)-, methyl ester, sodium salt