http://AATesaurus.cultura.gencat.cat/aat/getty_enhttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31411008synthetic organic black pigment http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31411008 black pigment BT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31411008 synthetic organic pigment BT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31411008 aniline black NT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31411008 artificial organic black pigment UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31411008 pigment, synthetic organic black UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31411008 synthetic organic black pigments UF