special chiral intemediate Dibenzoyl-D-(+)- tartaric acid which widely used for separating isomers (+)-Dibenzoyl tartaric acidCAS:17026-42-5;MF:C18H14O8;FW:358.33;Properties:crystalline white powder,odourless and tastes slightly bitter.Purity:98.0%min;Specific rotation:D20=+114-- +117degree(C=9,EtOH));Melting Point:154--156 degree CPacking:25kgs fibre drums Dibenzoyl-D-(+)- tartaric acid