56525-25-8 59970-21-7 Bis(2-(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)ethyl) 3,3'-thiobispropionate EINECS 260-244-0 Propanoic acid, 3,3'-thiobis-, bis(2-(3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)ethyl) ester