Jasno crna 38
pentanatrium-3-amino-8-[4-[4-[4-[4-(6-amino-1-hydroxi-7-sulfonato-naftalen-1-ylazo)-7-sulfonatonaftalen-1-ylazo]-fenylamino]-3-sulfonato-fenylazo]-6-sulfonato-naftalen-1-ylazo]-4-hydroxi-naftalen-2-sulfonat;