S 2665 (OTTO) Succinic anhydride, 99% Cas 108-30-5 - used in the preparation of covalently cross-linked oxidized-alginate/N-succinyl-chitosan hydrogels, as injectable systems towards tissue engineering. S 2665 (OTTO) Succinic anhydride, 99% Cas 108-30-5 - used as a sizing agent and curative for epoxy resin. It acts as an additive in paper production. It is utilized in the preparation of covalently cross-linked oxidized-alginate and N-succinyl-chitosan hydrogels. It serves as an intermediate for functionalized oxide surfaces on a chip and for polyester resins.