Synonyms:
nitro red ; nitro red,pure ; 4-amino-5-hydroxy-3-(4-nitrophenylazo)-2,7-naphthalenedisulfonic acid disodium salt ; 7-naphthalenedisulfonicacid,4-amino-5-hydroxy-3-[(4-nitrophenyl)azo]-diso ; sodium 4-amino-5-hydroxy-3-((4-nitrophenyl)diazenyl)naphthalene-2,7-disulfonate ; 2,7-naphthalenedisulfonicacid, 4-amino-5-hydroxy-3-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2) ; 2,7-naphthalenedisulfonicacid, 4-amino-5-hydroxy-3-[(4-nitrophenyl)azo]-, disodium salt (9ci) ; disodium 4-amino-5-hydroxy-3-(4-nitrophenylazo)naphthalene-2,7-disulphonate