Solvent Red 45
Name:C.I.Solvent Red 45,C.I.45386
Molecular Structure: Xanthene class
Molecular Formula:C22H11Br4KO5
Molecular Weight: 714.03
CAS Registry Number:6359-05-3
Manufacturing Methods :Fluorescein (C.I. Acid Yellow 73, C.I. 45350) in water or ethanol solution bromide into four bromine derivatives, and then into sodium salt, then product (C.I. Acid Red 87) ethyl ester and translated into potassium.
Properties and Applications:brilliant blue light red. Slightly soluble in hot water for cherry red, with weak green yellow fluorescence, slightly soluble in ethanol to red, with brown light yellow fluorescence. In concentrated sulfuric acid to yellow, dilution after brown light yellow precipitation.
Standard | Light Fastness | Heat-resistant(℃) | water | Sodium Carbonate(5%) | Hydrochloric acid(5%) | |
Melting point | Stable | |||||
ISO | Poor | Dissole | Good | Good |
List of Suppliers:
Eosine spirit soluble( Farbwerke vorm. Meister Lucius &Brtining )
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