High Quality Content by WIKIPEDIA articles! Croconate blue or 1,2,3-tris(dicyanomethylene) croconate is a divalent anion with chemical formula C14N6O2?2 or ((N?C-)2C=)3(C5O2)2?. It is one of the pseudo-oxocarbon anions, as it can be described as a derivative of the croconate oxocarbon anion C5O2?5 through the replacement of three oxygen atoms by dicyanomethylene groups =C(-C?N)2. The term Croconate Blue as a dye name specifically refers to the dipotassium salt K2C14N6O2.

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