Fluoresceine

C.I.Solvent yellow 94 

     Molecular Formula:C₂₀H₁₂O₅

Molecular Weight: 332.31

CAS Registry Number:518-45-6

C.I.45350:1

 Molecular Structure: Xanthene

Properties and Applications: ORANGE TO YELLOW POWDER,DEPENDS ON pH. INSOLUBLE IN WATER.SOLUBLE IN WEAK ALKALI WITH STRONG GREEN FLUORESCENCE

Standard	Light Fastness	Heat-resistant(℃)		water	Sodium Carbonate(5%)	Hydrochloric acid(5%)
		Melting point	Stable
ISO	Poor			Insoluble	General	No change