4-Amino-5-hydroxynaphthalene-2,7-disulphonic acid with a purity by weight of 80 % or more (CAS RN 90-20-0)
Restriction on entry into free circulation
condition:B,certificate:9009,action:29|condition:B,certificate:9010,action:29|condition:B,certificate:9017,action:26|condition:B,action:09