Provided is a compound in which a group derived from chondroitin sulfate and a group derived from a steroid are covalently bonded together via a spacer represented by general formula (I). In the formula, m represents an integer of 0 or 1. Here, if m = 0, R1 represents a group selected from the group consisting of electron-donating groups and steric hindrance groups. If m = 1, R1 represents a group selected from the group consisting of a hydrogen atom, electron-donating groups and steric hindrance groups. -HN-(CH2)m-CHR1-CO- (I)
