duncan hines frosting

Question

is duncan hines dark kosher fudge frosting good for passover? ingredients: sugar, vegetable shortening(partially hydrogenated soybean and cottonseed oil), water, corn syrup, dutched cocoa processed with alkali, contains two percent or less of: citric acid, cornstarch, mono and diglycerides, natural and articficial flavor, polysorbate 60, potassium sorbate, salt, sodium acid pyrophoshate and sodium citrate. also, is any kind of vanilla extract good for passover? thanks