| http://www.w3.org/ns/prov#value | - Succinic acid is a dicarboxylic acid and the invention therefore includes both salts in which the ratio of O-desmethyl-venlafaxine to acid (by mole) is 1:1 (i.e., a monosuccinate) and salts in which the ratio of O-desmethyl-venlafaxine to acid (by mole) is 2:1 (i.e., a bis isuccinate), as well as mixed salts, with for example an alkali metal or ammonium cation.
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