L 1325 (OTTO) Lead acetate, basic, anhydrous, 99% Cas 51404-69-4 - used to detect the poisonous gas hydrogen sulfide. L 1325 (OTTO) Lead acetate, basic, anhydrous, 99% Cas 51404-69-4 - used as a mordant in textile printing and dyeing, and as a drier in paints and varnishes.