Similar names: 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(2,4,5-trimethylphenyl)azo]-, disodium salt (9CI); Ponceau 3R (6CI); C.I. 16155; D and C Red 15; Disodium 3-hydroxy-4-[(2,4,5-trimethylphenyl)azo]-2,7-naphthalenedisulfonate; Dolkwal Ponceau 3R; Ext D and C Red No. 15; FD and C Red No. 1; FD&C Red No. 1; FDC Red 1; Japan Red 1; Japan Red 502; Maple Ponceau 3R; Ponceau 3R Lake; Ponceau 3R sodium salt; Ponceau 3RN; Scarlet F; Usacert Red No. 1