Synonyms:
disodium 4-hydroxy-3-[(2-methoxyphenyl)azo]naphthalene-2,7-disulphonate ; 4-hydroxy-3-[(2-methoxyphenyl)azo]-2,7-naphthalenedisulfonic acid disodium salt ; c.i.14905 ; 2,7-naphthalenedisulfonic acid, 4-hydroxy-3-(2-methoxyphenyl)azo-, disodium salt ; c.i.acid red 5