Diethylene glycol monoethyl ether, 99% Cas 111-90-0 - used in manufacturing brake fluid. Diethylene glycol monoethyl ether, 99% Cas 111-90-0 - used as a flow and gloss promoter in paint industries, in production of printing ink and as a cleaner in offset printing. Diethylene glycol monoethyl ether, 99% Cas 111-90-0 - used in textile as a solvent for dyestuff in the printing and dying of fiber & fabrics, in the production & wood preservaties.