Vitamin E succinate is lacking; Vitam E acetate is available. Conversion of vitamin E derivatives

There is a table, which enumerates the equation in activity of the various vitamin E esters. On the basis of these the conversion is easily feasible  

The international unit is the activity given by 1 mg of a standard preparation of DL-alpha tocopherol   acetate. D-alpha tocopherol, 1.49 units DL-alpha tocopherol, 1.1 units D-alpha tocopherol acetate, 1.36 units DL-alpha tocopherol acetate, 1 unit D-alpha tocopherol succcinate, 1.21 units DL-alpha tocopherol succinate, 0.89 unit.