We can supply malic acid( DL-MALIC ACID, L-MALIC ACID. D-MALIC ACID)
Assay(as C4H6O5) 99.0%~100.5%
Specific Rotation -0.10~ +0.10
Heavy Metals (as Pb) 10mg/kg Max
Residue on Ignition 0.1%Max
Fumaric Acid 1.0%Max
Maleic Acid 0.05%Max
Water-insoluble Matter 0.1%Max
Arsenic (as As2O3)  4mg/kg Max
If you are interesting it. Welcome to your inquiry.