1-amino-9,10-dihydro-9,10-dioxo-2-anthracenecarboxylicaci

Brownish red solid. Melting point 295-296℃ (291℃, 360℃).

1-Amino-9,10-dihydro-9,10-dioxo-2-anthracenecarboxylicaci is used as dye intermediates, used in the production of Reduction Red F3B, etc.

Synthesis, p. 528, 1976 DOI: 10.1055/s-1976-24108

1-Aminoanthraquinone-2-carboxylic acid is prepared from 1- nitroanthraquinone-2-carboxylic acid with ammonia or from 2-methyl-1-nitroanthraquinone .

It is used for the detection of Al, Mg Cd, Zn, Mn, Cu, Hg, Fe, Co, Ni and Pb. The methyl ester gives red needles from AcOH, m 228o. The ethyl ester, m 198o, crystallises also as red needles from AcOH. [Locher & Fietz Helv Chim Acta 10 667 1927, Beilstein 14 II 419, 14 III 168.]