Latin Name: Glycine max (L.) Merrill[Fam. Fabaceae] CAS No.: Active Ingredient: isoflavones Specifications: 40% Test Method: HPLC Soy isoflavones are phytochemical constituents of soybeans, a legume that has served as the basis for various foods in many Southeast Asian countries for thousands of years. The major isoflavones in soy are genistein and daidzein. Soyfoods also contain other valuable constituents, including protein, saponins, and phytosterols.