Retinyl acetate (Standard) is the standard substance of Retinyl acetate, and it is applicable for quantitative analysis, quality control, and related research in biochemical experiments. Retinyl acetate (Vitamin A acetate) is a group of unsaturated nutritional hydrocarbons, that contains retinal, retinol, retinoic acid, and several provitamins A carotenoids, among which beta-carotene is the most important.