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
	Structural Formula
	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
MAIN FUNCTION AND PURPOSE	It is an important four-carbon atoms chiral pool. It is mainly used in many fields including chiral pharmaceuticals, chiral additives and chiral auxiliaries. It is used as chiral pool of chiral synthesis in pharmaceutical and food industries. As an optically active organic acid, it is insubstitutable in asymmetry synthesis of some chiral compounds.
PACKING	25kg net weight in cardboard drum or according to customer requirements
STORAGE	Kept airtightly in a light-proof, dry and cool place.