euchroic acid

== English == === Etymology === From eu- +‎ Ancient Greek χρώς (khrṓs) +‎ -ic, meaning "well-colored". === Noun === euchroic acid (uncountable) (obsolete, organic chemistry) An imide acid, C12H4N2O8, that turns dark blue on reduction. ==== Related terms ==== euchrone === References === “euchroic”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.