California Adds DINP to Prop 65 List By Rob Herrington on February 12, 2014 Posted in Manufacturing, Prop 65 Consumer products companies should be aware that diisononyl phthalate (DINP), which is often used in soft plastics and vinyls, is now on the list of Proposition 65 chemicals. GT… Continue Reading California Adds DINP to Prop 65 List