D2 was the derivative of Daidzein (DZ) which was one of the active
principles of Pueraria pseudohiruta. Carboxyl group was introduced to
D2 by etherification ,so the solubility of D2 was greatly improved .In
the studies of D2 physicochemical properties ,it was found that the
solubility in water of D2 and D2Na were respectively 0.2mg/ml and
11.69mg/mi , which were 36 times and 2000 times greater than that of
...