Molecular Formula: C16H13N2NaO11S3 Formula Weight: 528.45
1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6- disulfonic acid trisodium salt;1,8-Dihydroxy-2-(4-sulfophenylazo)naphthalene-3,6-disulfonic acid trisodium salt;2-(4-Sulfophenylazo)-1,8-dihydroxy-3,6-naphthalene disulfonic acid trisodium salt;2-(4-Sulfophenylazo)chromotropic acid trisodium salt;SPADNS