White (slightly yellowish) powder, tasteless and odorless. Soluble in dilute acid, soluble in water, insoluble in organic solvents such as ethanol, ether and chloroform. Resistant to light and heat, stable in air, hygroscopicity. Oral LD50 in mice is more than 21.5g/kg.
magnesium ascorbyl phosphate (magnesium-1-ascorbyl-2phosphate) is a stabilized, synthetically derived version of vitamin C. It is reported to be as effective as vitamin C in regulating collagen biosynthesis, and as an anti-oxidant.