| abstract |
[Problem] To provide a compound as a diamine cross-linking agent capable of creating an acidic polysaccharide cross-linked product for use in medical materials, which has all of safety, ease of preparation, efficiency of physical property conversion, and degradation disappearance. A diamine compound represented by formula (I) having a primary amino group at both ends and an ester bond in the molecule. [R 1 is H, —CONR 3 R 4 group, —COOR 5 group, substituted / unsubstituted alkyl group, substituted / unsubstituted alkenyl group or substituted / unsubstituted alkynyl group; R 2 ′ is —CONR 3 R 4 group or —COOR 5 group; R 3 to R 6 each independently represents an alkyl group substituted / unsubstituted with H or phenyl group; R 8 ′ represents H or methyl group] [Selection figure] None |