Solvent Red 43
Name:C.I.Solvent Red 43,C.I.45380:2
Molecular Structure: Xanthene class
Molecular Formula:C20H8Br4O5
Molecular Weight: 647.89
CAS Registry Number:15086-94-9
Manufacturing Methods :Fluorescein (C.I. Acid Yellow 73, C.I. 45350) in water or ethanol solution bromide into four bromine derivatives, And made into a free acid form..
Properties and Applications: brilliant yellow red. Soluble in water and ethanol for blue light red, with yellow green fluorescence. In concentrated sulfuric acid to yellow, dilution after yellow red precipitation.
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