>98% [HPLC]. Free PNP < 200ppm.
Substrate for beta-L-fucosidase: G.A. Levvy and A. McAllan, Biochem. J.,80, 435 (1961). Has been used in the study of L-fucose binding lectins: H.J. Allen et al., Immunol. Commun., 6, 585 (1977). In the kinetic studies of beta-fucosidase from Lactuca sativa latex: R. Giordani and G. Noat, Eur. J. Biochem., 175, 619 (1988).