abstract |
A molecule of formula (I);wherein:X is a halogen, or a substituted sulfonate group;m=1-5;n=1-5;R1, R2=H, C1-4 lower alkyl or C1-4 lower alkyl chain having additional functionality; andthe amino group -NR1R2 linked to the anthraquinone is primary, secondary or tertiary or is a tertiary group in the N-oxide form having the formula -N(O)R1R2. |