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E6003

Sigma-Aldrich

Eosin Y disodium salt

Dye content ≥85%, Powder

Sinonimo/i:

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

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About This Item

Formula empirica (notazione di Hill):
C20H6Br4Na2O5
Numero CAS:
Peso molecolare:
691.85
Colour Index:
45380
Beilstein:
3586809
Numero CE:
Numero MDL:
Codice UNSPSC:
12171500
ID PubChem:
NACRES:
NA.47

product name

Eosin Y disodium salt, Dye content ≥85 %

Forma fisica

powder

Livello qualitativo

Composizione

Dye content, ≥85%

Colore

brown

pH

6.55 (29 °C, 84 °F)

Punto di fusione

255 — 270 °C (491 - 518 °F at 977.9 hPa)

Solubilità

H2O: 1 mg/mL

Densità

1.018 g/cm3

applicazioni

diagnostic assay manufacturing
hematology
histology

Temperatura di conservazione

room temp

Stringa SMILE

[Na+].[Na+].[O-]C(=O)c1ccccc1C2=C3C=C(Br)C(=O)C(Br)=C3Oc4c(Br)c([O-])c(Br)cc24

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
SEACYXSIPDVVMV-UHFFFAOYSA-L

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Applicazioni

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.

Azioni biochim/fisiol

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.

Pittogrammi

Exclamation mark

Avvertenze

Warning

Indicazioni di pericolo

Classi di pericolo

Eye Irrit. 2 - Skin Sens. 1

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

376.9 °F - Pensky-Martens closed cup

Punto d’infiammabilità (°C)

191.6 °C - Pensky-Martens closed cup

Dispositivi di protezione individuale

dust mask type N95 (US), Eyeshields, Gloves


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