中文名字：D-（+）-对甲基二苯甲酰酒石酸（无水物）

Product Name:Di-p-toluoyl-D-tartaric acid
Synonyms:
Molecular Formula:C₂₀H₁₈O₈
CAS #:32634-68-7

Test Items	Standard
Appearance	White fine crystals
Assay	98.0 to 101.0%
Specific Rotation [20/D]	+136° +139°（c=1,乙醇）
Melting point	169 171℃
Chloride (Cl)	Not more than 0.10%
Heavy Metals (Pb)	Not more than 10 PPM
Loss on Drying	Not more than 0.20%
Residue on Ignition (Sulfate)	Not more than 0.20%