Synthesis of 6-oxo-1,4,5,6-tetrahydropyridizin-3-carboxylic acid

A method for producing 6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxylic acid is disclosed that includes steps of adding hydrazine sulfate with 2-ketoglutaric acid in a container as a solid, adding water to the solid creating a heterogenous mixture of the hydrazine sulfate, 2-ketoglutaric acid and water, blending the heterogenous mixture for at least one hour, and measuring the heterogenous mixture to confirm that it has converted into 6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxylic acid. Hydrazine sulfate can be added to the 2-ketoglutaric acid in the container at a ratio of greater than 1.1. The compound 6-oxo-1,4,5,6-tetrahydropyridazine-3-carboxylic acid (PCA) has many uses. It has been used for medical applications and as a building block and for medical applications. The compound is also a product of the remediation of hydrazine using 2-ketogluraric acid.