Abstract: Novel anthelmintics are described which, as active ingredient, contain a compound of the formula I ##STR1## or in its hydrogenated form the formula (Ia) ##STR2## in which R.sub.1 and R.sub.2 independently of one another are C.sub.1 -C.sub.6 alkyl, allyl, C.sub.3 -C.sub.6 cycloalkyl, benzyl or phenyl; R.sub.3 is an unsubstituted or substituted heteroaromatic 6-membered ring which contains 1, 2 or 3 nitrogen atoms or a benzo-fused, unsubstituted or substituted heteroaromatic 6-membered ring which contains 1 to 3 nitrogen atoms, and R.sub.4 and R.sub.5 independently of one another are hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogeno-C.sub.1 -C.sub.3 alkyl, including their tautomeric forms and physiologically tolerable salts. The preparation, formulation and use of these active ingredients are also described.

Abstract: Reactive dyes of formula ##STR1## wherein Y is a radical of formula ##STR2## or--CO--A--SO.sub.2 --X (3)Z is --NH.sub.2, an unsubstituted or a substituted aliphatic or aromatic amino group; A is an unsubstituted or a substituted aliphatic or aromatic bridging group, and X is .beta.-sulfatoethyl, .beta.-thiosulfatoethyl, .beta.-phosphatoethyl, .beta.-acyloxyethyl, .beta.-haloethyl or vinyl; the benzene rings I, II and III may contain further substituents in addition to 2 to 4 sulfo groups and, in the benzene ring II, to the radical --NH--Y; and the reactive dyes of formula (1) contain only a single fiber-reactive radical, are especially suitable for dyeing or printing cellulosic fiber materials by the methods customarily employed for reactive dyes, and give dyeings and prints of good fastness properties in high color yield.