the similarity of the side-chain characteristics of 1,4-dihydroxy-5,8-bis [ [ 2- [ ( 2-hydroxyethyl ) amino ] ethyl ] amino ] - anthraquinone ( dhaq ) , discovered by us in 1978 , and those of the n-substituted imides of 3-nitro-1,8-naphthalic acid , discovered by other investigators recently , led us to conduct a systematic study on the n- ( aminoalkyl ) -substituted derivatives of a variety of imides .
C0003174
anthraquinone
C0026259
dhaq