Provided is a compound in which a group derived from chondroitin sulfate and a group derived from a steroid are covalently bonded via a spacer represented by the following general formula (I). In the formula, m represents an integer of 0 or 1. Here, when m = 0, R1 represents a group selected from the group consisting of an electron donating group and a sterically hindered group. When m = 1, R1 consists of a hydrogen atom, an electron donating group and a sterically hindered group. A group selected from the group is shown. -HN- (CH2) m-CHR1-CO- (I) コンドロイチン硫酸に由来する基とステロイドに由来する基とが下記一般式(I)で表されるスペーサーを介して共有結合した化合物を提供する。式中、mは0又は1の整数を示す。ここで、m=0の場合、R1は電子供与基及び立体障害性基からなる群から選ばれる基を示し、m=1の場合、R1は水素原子、電子供与基及び立体障害性基からなる群から選ばれる基を示す。 -HN-(CH2)m-CHR1-CO- (I)