Bis[2-(1-methylethyl)phenyl] Ester Phosphorochloridic Acid is an intermediate in the synthesis of Bis(2-isopropylphenyl) Phenyl Phosphate (B451445), which is a triaryl phosphate used as plasticizers in polyvinyl chloride (PVC) as well as a flame retardant. Studies show that Bis(2-isopropylphenyl) Phenyl Phosphate inhibits the human androgen receptor.