| abstract |
New derivatives of 2-mercapto-pyrido(1,2,-b)1,2,4-thiadiazolium salts of the formula WHEREIN R represents hydrogen, halogen, nitro, alkyl or alkoxy M DENOTES 1 OR 2 A stands for an optionally substituted straight-chain or branched alkyl radical or an optionally substituted phenylalkyl radical and X represents the union of a non-toxic acid having a broad range anthelmintic action, process for their production, anthelmintic compositions containing a thiadiazolium salt of the above formula and the use of thiadiazolium salts of the above formula for the control of parasitic helminths. |