81-51-6

Purpurinamide 4-Aminoxanthopurpurin 4-Amino-1,3-dihydroxyanthraquinone 1-amino-2,4-dihydroxyanthraquinone 1-Amino-2,4-dihydroxy-9,10-anthraquinone 1-amino-2,4-dihydroxyanthra-9,10-quinone 1-amino-2,4-dihydroxyanthracene-9,10-dione 1-azanyl-2,4-dihydroxy-anthracene-9,10-dione