1. 1,2-Cyclohexanediamine platinum (II) -bis (4-methylbenzenesulfonate) dihydrate. A process for the preparation of 1,2-cyclohexanediamine platinum (II) -bis (4-methylbenzenesulfonate) hydrates, comprising the steps of: a) reacting 1,2-cyclohexane diamine dihalogenplatinum (II) and silver 4-methylbenzenesulfonate in a water-containing solvent to form 1,2-cyclohexane diamineplatinum (Ii) bis (4-methylbenzenesulfonate) and silver halide, b) recovering the silver halide from the reaction mixture from step a), c) adding a compound that forms an azeotropic mixture with water, d) removing at least a portion of the water from the azeotrope mixture e) regulation of water fractions to give the desired 1,2-cyclohexanediamine platinum (II) -bis (4-methylbenzenesulfonate) hydrate f) recovering the 1,2-cyclohexanediamine platinum (II) -bis (4-methylbenzenesulfonate) hydrate. The method of claim 2, that chlorine, bromine and / or iodine are used as the halogen in 1,2-cyclohexanediamine dihalogenene (II). The method according to claim 2 or 3, characterized in that the reaction proceeds at the substoichiometric levels of silver 4-methylbenzenesulfonate. A process according to claim 2, characterized in that in step c), after the silver halide is separated in step b), and prior to the addition of the compound that forms the azeotropic mixture with water, activated carbon is added to the reaction mixture. A process according to claim 2, characterized in that the water-containing solvent in step a) is water or a mixture containing water and at least one additional compound which forms an azeotropic mixture with water. The process of claim 2, wherein the compound that forms the azeotropic mixture with water is n-butanol. Method according to claim 2, 2-cyclohexanediamine dihalogenene (II), chlorine, bromine and / or iodine are used. The method according to claim 2 or 3, characterized in that the reaction proceeds at the substoichiometric levels of silver 4-methylbenzenesulfonate. A proc