Difference between revisions of "Eosin Y"
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(Created page with "{{Chembox | Name = Eosin Y | Reference = | IUPACName = 2-(2,4,5,7-Tetrabromo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate [in its deprotonated form] | PIN = | SystematicName = | Oth...") |
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[[Category:Carboxylic acids]] | [[Category:Carboxylic acids]] | ||
[[Category:Dyes]] | [[Category:Dyes]] | ||
| + | [[Category:Triarylmethane dyes]] | ||
Latest revision as of 19:20, 23 November 2023
| Names | |
|---|---|
| IUPAC name
2-(2,4,5,7-Tetrabromo-6-oxido-3-oxo-3H-xanthen-9-yl)benzoate [in its deprotonated form]
| |
| Other names
C.I. 45380
C.I. Acid Red 87 Eosin Yellow | |
| Properties | |
| C20H6Br4Na2O5 | |
| Molar mass | 647.89052 g/mol |
| Appearance | Reddish powder |
| Density | 1.018 g/cm3 |
| Melting point | 295.5 °C (563.9 °F; 568.6 K) |
| Boiling point | (decomposes) |
| Slightly soluble | |
| Hazards | |
| Safety data sheet | Sigma-Aldrich |
| Lethal dose or concentration (LD, LC): | |
| LD50 (Median dose)
|
2,000 mg/kg (rat, oral) |
| Related compounds | |
| Related compounds
|
Fluorescein |
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
| Infobox references | |
Eosin Y, also called C.I. 45380 or C.I. Acid Red 87, is a member of the triarylmethane dyes.
Contents
Properties
Chemical
It is commonly used in histology, most notably in the H&E (Haematoxylin and Eosin) stain.
Physical
Eosin Y is a reddish solid, soluble in organic solvents.
Availability
Eosin Y is sold by chemical suppliers.
Preparation
Can be synthesized by brominating fluorescein.
Projects
- Hystological dye
- Papanicolaou stain
Handling
Safety
The compound doesn't appear to be harmful at low concentrations.
Storage
In closed airtight bottles.
Disposal
Eoxin Y doesn't require any special disposal.
