D(+)-malic acid CAS NO.·ª6915-15-7(Standard: FCCIV,1996) Name·ªD(+)-malic acid Function·ª DESCRIPTION:white crystals or white crystalline powder, soluble in water, alcohol and other organic solvent. Its aqueous solution is acidic. Chemical Name:R-hydroxy butanedioic acid Molecular Formula:C4H6O5 Molecular Weight:134.09 SPECIFICATION(FCCIV,1996): Assay(as C4H6O5):99.0%~100.5% Optical purity (e.e%,Chiral HPLC):98.0% Min Specific Rotation (c=8.5,H2O):+1.6 ~+2.6 Arsenic(As2O3):2.0mg/kg Max Heavy Metal(Pb):20mg/kg Max Residue On Ignition:0.1% Max Chloride[Cl-]:0.01% Max Sulfate :0.04% Max Fumaric Acid:0.5% Max Maleic Acid:0.05% Max