1 AQS N,N-bis(3-aminopropyl)-2-anthraquinonesulfonamide 1.000 2 7JB ~{N}-~{tert}-butyl-9,10-bis(oxidanylidene)anthracene-2-sulfonamide 0.733 3 I9Q N-(3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonyl)-beta-alanine 0.719 4 I91 N-(3-hydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonyl)glycine 0.710