(3Z)-5-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonic acid; disodium 5-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(E)-phenyldiazenyl]naphthalene-2,7-disulfonate; Reactive Brilliant Red 5bs; Reactive Red 2; procion red mx-5B; Reactive Brilliant Red X-3b; disodium (3Z)-5-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonate; C.I.Reactive Red 2