A study of the cyclodextrin complexes of flavonoids and azodyes by thin layer chromatography. Part II. Hydroxypropyl-cyclodextrins

2-Hydroxypropyl-beta -cyclodextrin (1) was recently advocated for general s olubility enhancement in pharmacy. In view of this, data are presented of t he behaviour of flavonoids, azodyes and other compounds in adsorption chrom atography on cellulose layers eluted with aqueous solvents containing vario us concentrations of 1. The results show that elution is not very different from that previously observed with beta -cyclodextrin except that complete elution of many compounds can be obtained with high concentrations (10-20% ) of 1. Copyright (C) 2000 John Wiley & Sons, Ltd.