Alizarin red , Indicator , 130-22-3

Synonym(s):
3,4-Dihydroxy-9,10-dioxo-2-anthracenesulfonic acid sodium salt;Alizarin Carmine;Alizarin Red, water soluble;Alizarin sodium monosulfonate;Alizarin sulfonate sodium

CAS NO.：130-22-3

Empirical Formula: C14H7NaO7S

Molecular Weight: 342.26

MDL number: MFCD00013049

EINECS: 204-981-8

PRODUCT Properties

• Melting point: >250°C
• Boiling point: 287-289°C
• storage temp.: room temp
• solubility: H2O: soluble1mg/mL
• form: Powder
• Colour Index: 58005
• pka: 4.5, 11(at 25℃)
• color: Various
• PH Range: 4.3(yellow)-6.3(violet)
• Water Solubility: Soluble in water and alcohol.
• λmax: 556nm, 596nm, 423nm, 546nm
• Merck: 14,8573
• BRN: 4117090
• Stability: Stable. Incompatible with strong oxidizing agents.
• Biological Applications: Detecting Candida,lactic acid bacteria,microorganisms; treating gastropathy,viral diseases
• Major Application: Nanocomposite material, chemical mechanical polishing, optical fibers, display device, carbon nanotubes, textiles, determination of aluminum,iron,copper,manganese,zinc,calcium,magnesium,zirconium,hafnium,molybdenum,uranium,vanadium, detergents, hair dyes, determination of proteins,clotrimazole,ketoconazole,piroxicam,and tenoxicam
• InChIKey: HFVAFDPGUJEFBQ-UHFFFAOYSA-M

Description and Uses

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.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P305+P351+P338
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• RTECS: CB1095300
• TSCA: Yes
• HS Code: 32049090