... application. storage / transportion Glutaraldehyde 50% has a shelf life of 12 months in unopened, original containers and kept below ... tanning agents, protein cross-linking agent; in the preparation of heterocyclic compounds; also used for plastics, adhesives, fuels, ... tanning agents, protein cross-linking agent; in the preparation of heterocyclic compounds; also used for plastics, adhesives, fuels, ...