6406-58-2 Benzenesulfonic acid, 4-[[4-[(2-hydroxy-1-naphthalenyl)azo]-3-methylphenyl]azo]-3-methyl-, monosodium salt C.I. 26910 Cloth Scarlet R NSC66221 m-Toluenesulfonic acid, 4-[[4-[(2-hydroxy-1-naphthyl)azo]-m-tolyl]azo]-, monosodium salt