E6003

Eosin Y Dinatriumsalz

Dye content ≥85%, Powder

• Synonym(e): 2′,4′,5′,7′-Tetrabromfluorescein Dinatriumsalz, Bromfluorescein, D&C; Rot Nr. 22, Eosin gelblich, Säurerot 87
• Empirische Formel (Hill-System): C₂₀H₆Br₄Na₂O₅
• CAS-Nummer: 17372-87-1
• Molekulargewicht: 691.85
• Farbindexnummer: 45380
• Beilstein: 3586809
• EG-Nummer: 241-409-6
• MDL-Nummer: MFCD00005040
• UNSPSC-Code: 12171500
• PubChem Substanz-ID: 24894349
• NACRES: NA.47

Eigenschaften

• product name: Eosin Y Dinatriumsalz, Dye content ≥85 %
• Form: powder
• Qualitätsniveau: 200
• Zusammensetzung: Dye content, ≥85%
• Methode(n): titration: suitable
• Farbe: brown
• pH-Wert: 6.55 (29 °C, 84 °F)
• mp (Schmelzpunkt): 255 — 270 °C (491 - 518 °F at 977.9 hPa)
• Löslichkeit: H₂O: 1 mg/mL
• Dichte: 1.018 g/cm³
• Anwendung(en): diagnostic assay manufacturing; hematology; histology
• Lagertemp.: room temp
• SMILES String: [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
• InChIKey: SEACYXSIPDVVMV-UHFFFAOYSA-L

Beschreibung

Anwendung

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. Wirkung

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.

Sicherheitshinweise

• Piktogramme: GHS07
• Signalwort: Warning
• H-Sätze: H317,H319
• P-Sätze: P261 - P264 - P272 - P280 - P302 + P352 - P305 + P351 + P338
• Gefahreneinstufungen: Eye Irrit. 2 - Skin Sens. 1
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 3
• Flammpunkt (°F): 376.9 °F - Pensky-Martens closed cup
• Flammpunkt (°C): 191.6 °C - Pensky-Martens closed cup
• Persönliche Schutzausrüstung: dust mask type N95 (US), Eyeshields, Gloves