Sulfonazo III salt

Catalog No.	Quantity
AAA1048614	25 g
AAA1048606	5 g

Catalog No. AAA1048614 Supplier Thermo Scientific Chemicals Supplier No. A1048614

Description

CAS: 68504-35-8 | C22H16N4Na4O14S4 | 780.583 g/mol

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.

Applications
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.

Solubility
Soluble in water.

Notes
Incompatible with strong oxidizing agents. Store in a cool, dry, well-ventilated area.

Specifications

Chemical Identifiers

• CAS: 68504-35-8
• Molecular Formula: C22H16N4Na4O14S4
• Molecular Weight (g/mol): 780.583
• MDL Number: MFCD00003942
• InChI Key: WHVMUCGHHVLOCE-FMNKGCAFSA-N
• Synonym: Tetrasodium 4,5-dihydroxy-3,6-bis[(2-sulfonatophenyl)azo]naphthalene-2,7-disulfonate
• PubChem CID: 131857569
• IUPAC Name: (3E,6E)-4,5-dioxo-3,6-bis[(2-sulfophenyl)hydrazinylidene]naphthalene-2,7-disulfonic acid;sodium
• SMILES: C1=CC=C(C(=C1)NN=C2C(=CC3=C(C2=O)C(=O)C(=NNC4=CC=CC=C4S(=O)(=O)O)C(=C3)S(=O)(=O)O)S(=O)(=O)O)S(=O)(=O)O.[Na].[Na].[Na].[Na]

• Melting Point: ≥300°C
• Quantity: 25 g
• Beilstein: 1900148
• Solubility Information: Soluble in water.
• Formula Weight: 776.57
• Chemical Name or Material: Sulfonazo III salt

Safety and Handling

EINECSNumber	270-924-9
TSCA	No
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only