Alizarin Red S sodium salt, Thermo Scientific Chemicals

Description

Transition interval: pH 4.6 (yellow) to pH 6.0 (red)

Alizarin Red S sodium salt is used as a chromogenic agent for the colorimetric determination of dothiepin hydrochloride in pharmaceutical formulations. It is also used as an ion-pair reagent for the spectrophotometric assay of fexofenadine in pharmaceuticals. It acts as a colorometric pH indicator in the range of 3.8-5.4. Further, it is used in a biochemical assay to determine the presence of calcific deposition by cells of an osteogenic lineage.

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.

Specifications

Chemical Identifiers

• CAS: 130-22-3
• Molecular Formula: C14H7NaO7S
• Molecular Weight (g/mol): 342.253
• MDL Number: MFCD00013049
• InChI Key: HFVAFDPGUJEFBQ-UHFFFAOYSA-M
• Synonym: alizarin red s, sodium alizarinesulfonate, mordant red 3, sodium 3,4-dihydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate, alizarine s, acid red alizarine, sodium alizarin-3-sulfonate, alizarine red s sodium salt, alizarinsulfonate, alizarin s
• PubChem CID: 3955344
• ChEBI: CHEBI:87358
• IUPAC Name: sodium;3,4-dihydroxy-9,10-dioxoanthracene-2-sulfonate
• SMILES: C1=CC=C2C(=C1)C(=O)C3=CC(=C(C(=C3C2=O)O)O)S(=O)(=O)[O-].[Na+]

• Physical Form: Powder
• Quantity: 5 g
• Beilstein: 4117090
• Solubility Information: Soluble in water and alcohol.
• Formula Weight: 342.27
• Appearance: Various color powder
• Chemical Name or Material: Alizarin Red S sodium salt

RUO – Research Use Only