The series of products under the OPARYL trademark includes all the agrochemical auxiliaries produced by Bozzetto:

OPARYL MT: alkyl naphthalene sulphonates used as wetting agents auxiliary to the formulation of pesticides;
OPARYL DT: polynaphthalene sulphonates used as dispersing agents auxiliary for the formulation of pesticides and nitrogen based fertilizers;

OPARYL CI and HWT: phosphorus-based chelating / dispersing agents for the treatment of irrigation water.