Formula: C₁₉H₁₀Br₄O₅S Formula Weight: 669.97 CAS Number: 115-39-9 Synonym(s): 3`,3``,5`,5``-tetrabromo-m-cresolsulfonephthalein

Formula: C₂₁H₁₃Br₄O₅SNa Formula Weight: 720.00 CAS Number: 62625-32-5 Synonym(s): 3`,3``,5`,5``-tetrabromo-m-cresolsulfonephthalein Sodium Salt