dye|World dye variety

Name:C.I.Solvent Yellow 94,C.I.45350:1

Molecular Structure: Xanthene

C.I.Solvent Yellow 94,C.I.45350:1,CAS 518-45-6,332.31,C20H12O5,Fluorescein,Fluoresceine Acid,Yellow FLO

Molecular Formula:C₂₀H₁₂O₅

Molecular Weight: 332.31

CAS Registry Number:518-45-6

Manufacturing Methods : Resorcinol and Phthalic anhydride alone or in the presence of sulfuric acid Zinc chloride or condensation, namely for fluorescein, again into free acid.

Properties and Applications: yellow. Soluble in water and ethanol as yellow, with strong green fluorescence. In concentrated sulfuric acid to yellow, with weak fluorescence, dilution after yellow, with yellow precipitation. Dye aqueous solution to join sodium hydroxide color dark, with dark green fluorescence. The dye for C.I. Acid Yellow 73 free Acid. Used in cosmetics coloring.

List of Suppliers:

ABCOL Fluorescein ( Abbey Color Inc. )

Ariabel Yellow 11-00 ( Durand & Huguenin SA )

Fluoresceine 67962( Holliday Dyes & Chemicals Ltd )

Fluoresceine Acid(Simpsons (UK) Ltd)

Fluoresceine Free Acid(Simpsons (UK) Ltd)

Simpsol Yellow 23556( Simpsons (UK) Ltd )

Waxol Yellow FLO( Devarsons Industries Ltd )