The amino and hydroxy anthraquinones possess numerous chemically and biologically significant properties and as a group are also of considerable practical importance in the production of dyes & intermediates and as model compounds to gain fundamental information. These derivatives of anthraquinones have found important applications as prominent family of pharmaceutically active and biologically relevant chromophores. A detailed and comprehensive study of electronic absorption spectra of anthraquinone and its hydroxy and amino derivatives and their theoretical interpretation are presented. The...