Magnesium ascorbyl phosphate (MAP)

Magnesium ascorbyl phosphate (MAP) Molecular Formula C6H6O9PMg3/2.5H2O Molecular Weight 379.62 CAS Registry Number 113170-55-1 Specification : Appearance: off-white powder Color(3% Solu., APHA):≤50 pH of solution: 7.5-8.7 (3% aq. Solu.) Assay(%) as dry base (HPLC): ≥96.0% Optical Rotation[α]20 : +43 +50° Water contents: ≤29.0% Chloride: < 0.35% Free ascorbic a < 0.5% Free phosphoric a <1.0% Heavy metal(Pb):≤20ppm Arsenic(As):≤2ppm Total bacteria(cfu/g): <50