Sulfonazo III salt

CAS: 68504-35-8

Ref. 02-A10486

Product Information

• Name: Sulfonazo III salt
• Synonyms: tetrasodium (3Z,6Z)-4,5-dioxo-3,6-bis[2-(2-sulfonatophenyl)hydrazin-1-ylidene]naphthalene-2,7-disulfonate, 2,7-Bis(2-sulphophenylazo)chromotropic acid tetrasodium salt, 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3,6-bis[(2-sulfophenyl)azo]-, tetrasodium salt, 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3,6-bis[2-(2-sulfophenyl)diazenyl]-, sodium salt (1:4), 3,6-Bis(2-sulfophenylazo)-4,5-dihydroxy-2,7-naphthalenedisulfonic acid, tetrasodium salt, Sodium 4,5-dihydroxy-3,6-bis[2-(2-sulfophenyl)diazenyl]-2,7-naphthalenedisulfonate (4:1), tetrasodium (3Z,6Z)-4,5-dioxo-3,6-bis[(2-sulfonatophenyl)hydrazono]-3,4,5,6-tetrahydronaphthalene-2,7-disulfonate

Description

Sulfonazo III salt is used as spectrophotometric reagent for alkaline earth metals and indicator for sulfate titrations. In general it is used as an indicator. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

• Brand: Alfa Aesar By Thermo Fisher Scientific

Chemical properties

• Molecular weight: 776.55
• Formula: C₂₂H₁₂N₄Na₄O₁₄S₄
• Color/Form: powder, Dark green to purple or black
• InChI key: OWVXGCUJHKOBMQ-DTSPTRIMSA-J