[‚dī′eth·əl ‚pī·rō′kär·bə‚nāt] (organic chemistry) C6H10O5 A viscous liquid, soluble in alcohols, esters, and ketones; used as a gentle esterifying agent, as a preservative for fruit juices, soft drinks, and wines, and as an inhibitor for ribonuclease. Abbreviated DEPC.AcronymsSeeDEPC