Abstract: A description is given of formulations comprising solid and stable creatine/citric acid composition(s) and carbohydrate(s) or hydrates thereof having a weight ratio of the constituents creatine/citric acid composition(s) and carbohydrate(s) of 1:0.01 to 1.0. Carbohydrate components, which can be used in anhydrous form, as hydrates or as moist products, are in principle all polyhydroxyaldehydes and polyhydroxyketones. The creatine component is preferably used in anhydrous form or in aqueous alcoholic or organic solution. The formulations should preferably be prepared by reacting the carbohydrates in the form of solutions, suspensions or as solid substance with the creatine/citric acid composition or solution thereof at ?20 to 120° C. and, if appropriate, finally removing the liquid phase, or else by a thermal treatment, a treatment with ultrasound or microwave of mixtures consisting of the creatine component and solid carbohydrates, preferably in a vacuum.

Abstract: The invention relates to addition and/or co-ordination compounds consisting of creatine and citric acid in the ratio of >1.0 to 3.0:1.0. Said compounds are characterised in that they have (KBr) bands in the IR spectrum, where &ngr;=3425 (±5) cm−1 (s), 1624 (±5) cm−1 (m-s) and 1247 (±5) cm−1 (m). Said compounds, which preferably contain no organic solvent and are present in a solid, pulverulent form are produced in particular by a method, according to which, a1) creatine, containing a maximum content of 20 wt. % water, is reacted with citric acid or its salts at temperatures between 0 and 70° C., or a2) creatine and citric acid or its salts, containing a total water content of between 5 and 15 wt. %, are ground at temperatures between 0 and 70° C., or a3) creatine is reacted with citric acid or its salts, in the presence of a solvent at temperatures between 0 and 70° C. The corresponding solvent is then eliminated to a maximum residual content of 1.

Abstract: The invention relates to choline pyruvate of formula (I) wherein 0<n≦10, and is a stabile, physiologically compatible formulation containing said choline pyruvate, water and/or an organic solvent such as glycerine, or is present in a solid and preferably a powder form. The invention also relates to a method for producing choline pyruvate, whereby choline hydroxide is placed in a solvent, such as water or a methanol/water mixture, at a temperature of between 0 and 98° C., then pyruvric acid is added drop by drop in external cooling conditions and mixed until a pH value of between 5.0 and 8.0 is reached, the solvent is then removed and finally the obtained product is added to a physiologically compatible solvent.

Abstract: A method of producing calcium pyruvates is described, in which calcium salts of organic acids or acidic organic keto or hydroxy compounds are reacted with pyruvic acid at a temperature in the range from −20 to +120° C., if necessary in the presence of a solvent or diluent. In this way, high-purity calcium pyruvates are obtained which can be largely free of water and have a very long shelf life.

Abstract: A method of producing calcium pyruvates is described, in which calcium salts of organic acids or acidic organic keto or hydroxy compounds are reacted with pyruvic acid at a temperature in the range from -20 to +120.degree. C., if necessary in the presence of a solvent or diluent. In this way, high-purity calcium pyruvates are obtained which can be largely free of water and have a very long shelf life.

Abstract: Melamine is prepared from cyanamide and/or dicyandiamide by contacting the cyanamide and/or dicyandiamide at approximately atmospheric pressure in an organic solvent at 100.degree. to 250.degree. C with at least one solvent selected from the group having the formulas ##STR1## wherein R.sub.1 and R.sub.2 are alkyl which may be joined together to form an alkylene ring,In the simultaneous presence of alkali hydroxide or alkaline earth hydroxide.