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| | Ethyl eosin Basic information |
| Product Name: | Ethyl eosin | | Synonyms: | SOLVENT RED 45;2',4',5',7'-TETRABROMOEOSIN ETHYL ESTER POTASSIUM SALT;CI NO 45386;CI 45386;EOSIN ALCOHOL SOLUBLE;EOSIN ETHYL;EOSIN (SPIRIT SOLUBLE);Benzoic acid, 2-(2,4,5,7-tetrabromo-6-hydroxy-3-oxo-3H-xanthen-9-yl)-, ethyl ester, potassium salt | | CAS: | 6359-05-3 | | MF: | C22H13Br4KO5 | | MW: | 716.06 | | EINECS: | 228-793-0 | | Product Categories: | Xanthene | | Mol File: | 6359-05-3.mol |  |
| | Ethyl eosin Chemical Properties |
| Melting point | >200℃ | | storage temp. | room temp | | solubility | Soluble in hot water; slightly soluble in
ethanol | | form | crystals or powder | | Colour Index | 45386 | | color | Red-brown | | Water Solubility | Freely soluble | | λmax | 532 nm | | Major Application | diagnostic assay manufacturing
hematology
histology | | Biological Applications | Drug delivery and tissue engineering; photodynamic therapy; dental materials; treating cancer,diabetes; wound dressing materials | | InChI | 1S/C22H12Br4O5.K/c1-2-30-22(29)10-6-4-3-5-9(10)15-11-7-13(23)18(27)16(25)20(11)31-21-12(15)8-14(24)19(28)17(21)26;/h3-8,27H,2H2,1H3;/q;+1/p-1 | | InChIKey | UKZQEOHHLOYJLY-UHFFFAOYSA-M | | SMILES | [K+].CCOC(=O)c1ccccc1C2=C3C=C(Br)C(=O)C(Br)=C3Oc4c(Br)c([O-])c(Br)cc24 |
| Safety Statements | 22-24/25 | | WGK Germany | 3 | | HS Code | 32041900 | | Storage Class | 11 - Combustible Solids |
| | Ethyl eosin Usage And Synthesis |
| Chemical Properties | red to brown powder | | Uses | Ethyl eosin is a histological stain that has been used in the Stoval and Black method for illustrating Negri bodies in the central nervous system of rabid animals. Dyes and metabolites. | | Definition | ChEBI: An organic potassium salt having 2,4,5,7-tetrabromo-9-{2-[(ethyloxy)carbonyl]phenyl}-3-oxo-3H-xanthen-6-olate as the counterion. | | Preparation | 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.
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Standard
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Light Fastness
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Heat-resistant(℃)
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water
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Sodium Carbonate(5%)
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Hydrochloric acid(5%)
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Melting point
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Stable
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ISO
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Poor
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Dissole
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Good
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Good
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| | Ethyl eosin Preparation Products And Raw materials |
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