Product Description Product Description Magnesium Succinate (CAS 556-32-1) is the magnesium salt of succinic acid, supplied as a white crystalline powder. Succinic acid is a natural intermediate of the tricarboxylic acid (TCA) cycle, which makes magnesium succinate a well-tolerated and bioavailable source of magnesium. This food and feed grade product is produced under strict hygiene and quality control, suitable for dietary supplements, food fortification and animal feed