Abstract: The present invention relates to amino derivatives of pyridazine of general formula: ##STR1## in which one of the substituents R.sub.1, R.sub.2 or R.sub.3 represents a phenyl or hydroxyphenyl group, while the other two represent hydrogen or an alkyl group with C.sub.1 -C.sub.4 ;A represents a linear or branched alkylene group having 2 to 5 carbon atoms;X represents hydrogen or an alkyl group with C.sub.1 -C.sub.4, as well as the salts of said derivatives with the pharmaceutically acceptable acids, and also relates to a process for preparing the products of formula (I) and to drugs containing a product of formula (I).

Abstract: A complex of a polylactam and a phenolic compound having the formula: ##SPC1##Wherein m is an integer from 2 to 5; z and y are expressed as a ratio of z:y and is 1:1, 1:2, 2:3 or 1:4; W is alkylene having from 3 to 20 carbon atoms and each R and R.sub.2 is hydrogen, halogen, hydroxyl, alkoxy of 1 to 4 carbon atoms, amido, alkyl hydroxy of from 1 to 4 carbon atoms, cyano or alkyl having from 1 to 12 carbon atoms, and wherein R.sub.2 can also be alaninyl, or ##SPC2##Where each R' is hydrogen, hydroxyl, halo, cyano, alkyl having from 1 to 6 carbon atoms or nitro. The complexes are useful as germicides, insecticides, wood preservatives, plasticizers, and anti-oxidants.