uvitonic acid

== English == === Noun === uvitonic acid (uncountable) (organic chemistry) An acid, 6-methyl-2,4-pyridinedicarboxylic acid, obtained by the action of ammonia on pyrotartaric acid. === References === “uvitonic”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.