6-chloro-5-ethylpyrimidine-2,4-diamine

1-iodo-4-[(4-iodophenyl)disulfanyl]benzene

2-(1H-pyridin-2-ylidene)indene-1,3-dione

3-aminonaphthalene-2,6-disulfonic acid

1,5-二氯蒽