A compound comprising a glycosylated linker moiety and a physiologically active substance moiety, or a salt thereof, the compound being represented by the following formula (A): R 1 -X (A) wherein R 1 represents the glycosylated linker moiety; R 1 is represented by the following formula (IV): in the formula (IV), each R 4 independently represents a hydrogen atom, an alkyl group having 1 to 16 carbon atoms, or an aryl group having 5 to 16 carbon atoms; R 7 represents -S-CH 2 -CONH-sugar chain or -CONH-sugar chain; R 8 represents a hydrogen atom, an acyl group having 1 to 16 carbon atoms, an Fmoc group, a Boc group, a Z group, a Troc group, an Alloc group, a carbamate protective group, a sugar chain, an amino acid, a polypeptide, a glycosylated amino acid, or a glycosylated polypeptide; each R 9 independently represents a hydrogen atom, halogen, a cyano group, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a nitro group, a mesyl group, a tosyl group, an acyl group having 1 to 3 carbon atoms, a hydroxy group, a carboxy group, or an amino group; and the wavy line represents a binding site to X; X represents the physiologically active substance moiety, the physiologically active substance has at least one amino group; and the bonding of the X to the R 1 is a bond at the at least one amino group. R 1 represents the glycosylated linker moiety; R 1 is represented by the following formula (IV): in the formula (IV), each R 4 independently represents a hydrogen atom, an alkyl group having 1 to 16 carbon atoms, or an aryl group having 5 to 16 carbon atoms; R 7 represents -S-CH 2 -CONH-sugar chain or -CONH-sugar chain; R 8 represents a hydrogen atom, an acyl group having 1 to 16 carbon atoms, an Fmoc group, a Boc group, a Z group, a Troc group, an Alloc group, a carbamate protective group, a sugar chain, an amino acid, a polypeptide, a glycosylated amino acid, or a glycosylated polypeptide; each R 9 independently represents a hydrogen atom, halogen, a cyano group, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a nitro group, a mesyl group, a tosyl group, an acyl group having 1 to 3 carbon atoms, a hydroxy group, a carboxy group, or an amino group; and the wavy line represents a binding site to X; X represents the physiologically active substance moiety, the physiologically active substance has at least one amino group; and the bonding of the X to the R 1 is a bond at the at least one amino group. each R 4 independently represents a hydrogen atom, an alkyl group having 1 to 16 carbon atoms, or an aryl group having 5 to 16 carbon atoms; R 7 represents -S-CH 2 -CONH-sugar chain or -CONH-sugar chain; R 8 represents a hydrogen atom, an acyl group having 1 to 16 carbon atoms, an Fmoc group, a Boc group, a Z group, a Troc group, an Alloc group, a carbamate protective group, a sugar chain, an amino acid, a polypeptide, a glycosylated amino acid, or a glycosylated polypeptide; each R 9 independently represents a hydrogen atom, halogen, a cyano group, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a nitro group, a mesyl group, a tosyl group, an acyl group having 1 to 3 carbon atoms, a hydroxy group, a carboxy group, or an amino group; and the wavy line represents a binding site to X; X represents the physiologically active substance moiety, the physiologically active substance has at least one amino group; and the bonding of the X to the R 1 is a bond at the at least one amino group. <EOS>