2,7-Naphthalenedisulfonic acid,4-hydroxy-3-[[1-sulfo-6-[[2-(sulfooxy)ethyl]sulfonyl]-2-naphthalenyl]azo]-5-[[[[3-[[2-(sulfothio)ethyl]sulfonyl]propyl]amino]carbonyl]amino]-, sodiumsalt
CAS No. 140673-89-8