4,4′-Biphenyl bis(diphenyl phosphate) 4,4′-Biphenyldiol, bis(diphenyl phosphate) ADK Stab FP 800 ADK Stab FP 900 FP 800 FP 900 P,P′-[1,1′-Biphenyl]-4,4′-diyl bis(P,P-diphenyl phosphate) Phosphoric acid, [1,1′-biphenyl]-4,4′-diyl tetraphenyl ester Phosphoric acid, 4,4′-biphenylylene tetraphenyl ester Phosphoric acid, P,P′-[1,1′-biphenyl]-4,4′-diyl P,P,P′,P′-tetraphenyl ester