AZO PIGMENT ALKALI METAL SALT, ALKALINE EARTH METAL SALT AND TAUTOMER THEREOF, COLORING COMPOSITION AND DYEING METHOD AND DYED PRODUCT

摘要

Provided are: an azo pigment alkali metal salt, in which the azo pigment is represented by general formula (1); an alkaline earth metal salt and a tautomer thereof; and a coloring composition, a dyeing method, and a dyed product that use the foregoing. A-N=N-B (1)