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Eosin Y disodium salt

SIAL/E6003 - Dye content ≥85 %

Synonym: 2′,4′,5′,7′-Tetrabromofluorescein disodium salt; Acid Red 87; Bromo acid J. TS, XL, or XX; Bromofluorescein; Bronze Bromo ES; D&C;Red No. 22; Eosin yellowish

CAS Number: 17372-87-1
Empirical Formula (Hill Notation): C20H6Br4Na2O5
Molecular Weight: 691.85
EC Number: 241-409-6
MDL Number: MFCD00005040
Linear Formula: C20H6Br4Na2O5
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-E6003-25G 25 g
 $51.20
1/EA		 Add To Favorites
45-E6003-100G 100 g
 $156.00
1/EA		 Add To Favorites
45-E6003-250G 250 g
 $304.00
1/EA		 Add To Favorites
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: E6003-250G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: E6003-25G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: E6003-100G

 

application(s) diagnostic assay manufacturing
hematology
histology
color brown
composition Dye content, ≥85%
density 1.018 g/cm3
form powder
InChI 1S/C20H8Br4O5.2Na/c21-11-5-9-13(7-3-1-2-4-8(7)20(27)28)10-6-12(22)17(26)15(24)19(10)29-18(9)14(23)16(11)25;;/h1-6,25H,(H,27,28);;/q;2*+1/p-2
InChI key SEACYXSIPDVVMV-UHFFFAOYSA-L
mp 255 — 270 °C (491 - 518 °F at 977.9 hPa)
pH 6.55 (29 °C, 84 °F)
Quality Level 200 
SMILES string [Na+].[Na+].[O-]C(=O)c1ccccc1C2=C3C=C(Br)C(=O)C(Br)=C3Oc4c(Br)c([O-])c(Br)cc24
solubility H2O: 1 mg/mL
storage temp. room temp
technique(s) titration: suitable
Application: Eosin Y disodium salt has been used for determining sperm viability. The swollen and stained spermatozoa were considered dead. In corneal epithelium, it has been used in the procedure of immunohistological staining.
Biochem/physiol Actions: Eosin Y is a xanthene dye and is used for the differential staining of connective tissue and cytoplasm. In histopathology, it is applied as a counterstain after hematoxylin and before methylene blue. It is also used as a background stain, thereby giving contrast to the nuclear stains.
Packaging: 25, 100, 250 g in glass bottle
mp 255 — 270 °C (491 - 518 °F at 977.9 hPa)
Density 1.018 g/cm3
Storage Temp. room temp
Colour Index Number 45380
UNSPSC 12171500

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