Magnesium Fumarate Tetrahydrate

Magnesium fumarate tetrahydrate is the magnesium salt of fumaric acid crystallised with four molecules of water, supplied by Nustras as a white powder and as a direct-compression granular grade and used as an organic magnesium source for supplements and fortification. Fumaric acid is a naturally occurring dicarboxylic acid and a recognised food acidulant.

It is formulated into magnesium and multimineral supplements in tablet, capsule and powder form, into vitamin and mineral premixes, and into fortified foods and nutritional powders where a dry, free-flowing magnesium salt is required.

The material is a white to off-white powder or granule. CAS number 6880-23-5, molecular formula C4H2MgO4 (anhydrous basis), molecular weight 138.36. Magnesium content, water content and particle size are standardised to specification; identity and assay are confirmed by complexometric titration or ICP for magnesium, and heavy-metal and microbial limits are supplied to specification and confirmed on each lot's certificate of analysis.

Nustras supplies magnesium fumarate tetrahydrate in bulk commercial quantities, in food-grade bags and fibre drums, to manufacturers and formulators internationally, with a certificate of analysis, specification sheet and country-of-origin documentation on every lot. Magnesium salts of fumaric acid are accepted magnesium sources in major supplement markets; buyers confirm the elemental-magnesium contribution and permitted level for their application. Contact us for grade, pricing per kilogram and lead time.