White Granulates or powder,molecular weight 514.86,melting point 39.5-41.5ºC,acid value <=0.05 mgKOH/g,solube in almost organic solvents but insoluble in alcohol and water. DLTDP is a good peroxide decompose agent, could regenesis the phenolic antioxidant cooperate use with it. DLTDP is used as secondary stabilizer and antioxidant in combination with phenolic antioxidant(1010,1076,CA) and UV absorbers for polymers(ABS,PP,PE, and polyesters) . No pollution, discoloration, and decompose under high temperature process. The dosage is 0.05%-0.5%.