Magnesium Succinate CAS 556-32-1 Product Introduction Magnesium succinate (CAS 556-32-1) is the magnesium salt of succinic acid, supplied by Zorui as a food-grade white crystalline powder with 99% min assay. Succinate is a natural intermediate of the Krebs energy cycle, which makes magnesium succinate a highly bioavailable form of magnesium for dietary supplements and functional foods. It is produced under strict food-safety controls and is suitable for vegetarian supplement