230251

Eosin Y

75% (HPLC)

• Synonym(e): 2′,4′,5′,7′-Tetrabromfluorescein, Bromfluorescein, Bromosäure J. TS, XL, oder XX, Bronze Bromo ES, Eosin gelblich, Eosinsäure, Solvent red 43, Säurerot 87
• Empirische Formel (Hill-System): C₂₀H₈Br₄O₅
• CAS-Nummer: 15086-94-9
• Molekulargewicht: 647.89
• Farbindexnummer: 45380:2
• EG-Nummer: 239-138-3
• MDL-Nummer: MFCD00036189
• UNSPSC-Code: 12171500
• PubChem Substanz-ID: 24853789
• NACRES: NA.47

Eigenschaften

• Qualitätsniveau: 100
• Assay: 75% (HPLC)
• Form: powder
• Farbe: orange to very dark orange
• Löslichkeit: spirit: soluble
• λmax: 524 nm
• Anwendung(en): diagnostic assay manufacturing; hematology; histology
• Lagertemp.: room temp
• SMILES String: Oc1c(Br)cc2c(Oc3c(Br)c(O)c(Br)cc3C24OC(=O)c5ccccc45)c1Br
• InChI: 1S/C20H8Br4O5/c21-11-5-9-17(13(23)15(11)25)28-18-10(6-12(22)16(26)14(18)24)20(9)8-4-2-1-3-7(8)19(27)29-20/h1-6,25-26H
• InChIKey: DBZJJPROPLPMSN-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

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.

Anwendung

Eosin Y has been used as a reagent in the preparation of Nigrosin-Eosin (NE) stain and is used in hematoxylin and eosin (H&E) staining technique to visualize alginate.

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type N95 (US)