20820-80-8 25 SN 2641-09-0 33 SN 4-04-00-03519 (Beilstein Handbook Reference) 51366-09-7 BRN 1769425 Medemo Methylphosphonothioic acid, S-(2-(dimethylamino)ethyl) O-ethyl ester O-Aethyl-S-(2-dimethylaminoaethyl)-methylphosphonothioat [German] O-Ethyl-S-(2-dimethylaminoethyl)-methylphosphonothioate Phosphonothioic acid, methyl-, S-(2-(dimethylamino)ethyl) O-ethyl ester S-2-Dimethylaminoethyl-O-ethylester kyseliny methylthiofosfonove [Czech]