Eosin Y
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Revision as of 21:37, 31 August 2022 by Mabus (Talk | contribs) (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...")
Names | |
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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.