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succinic acid suc·cin·ic acid (sək-sĭn'ĭk)
A colorless crystalline dicarboxylic acid important in the Krebs cycle.
a dicarboxylic acid of molecular formula C4H6O4 that is widely distributed in almost all plant and animal tissues and that plays a significant role in intermediary metabolism. It is a colourless crystalline solid, soluble in water, with a melting point of 185-187 C (365-369 F)