12225-25-1 17095-24-8 2,7-Naphthalenedisulfonic acid, 3,6-(bis(4-((2-hydroxyethyl)sulfonyl)phenyl)bis(azo))-5-amino-4-hydroxy-, di(hydrogen sulfate) ester, tetrasodium salt 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3,6-bis((4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)azo)-, tetrasodium salt 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-3,6-bis((p-((2-hydroxyethyl)sulfonyl)phenyl)azo)-, 3,6-bis(hydrogen sulfate) (ester), tetrasodium salt 4-Amino-5-hydroxy-3,6-bis((4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)azo)-2,7-naphthalenedisulfonic acid tetrasodium salt 72528-69-9 90598-98-4 C.I. 20505 C.I. REACTIVE BLACK 5 Cavalite Black B Celmazol Black B Diamira Black B Drimarene Black R/K 3B EINECS 241-164-5 Intracron Black VS-B Levafix Black E-B Primazin Black BN Reactive Black 5 Remazol Black GF Remazol black B Sumifix Black B Tetrasodium 4-amino-5-hydroxy-3,6-bis((4-((2-(sulphonatooxy)ethyl)sulphonyl)phenyl)azo)naphthalene-2,7-disulphonate