Bis(3,3-dimethyl-hept-2-yl) Phthalate-d4 is the isotope labelled analog of Bis(3,3-dimethyl-hept-2-yl) Phthalate (B429865); a diester derivative of Phthalic Acid (P384480) which can be used as a plasticizer in the synthesis of polyvinyl chloride products.