E4382

Eosin Y disodium salt

Dye content, ≥90%, certified by the Biological Stain Commission, 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
• Formula empirica (notazione di Hill): C₂₀H₆Br₄Na₂O₅
• Numero CAS: 17372-87-1
• Peso molecolare: 691.85
• Colour Index: 45380
• Beilstein: 3586809
• Numero CE: 241-409-6
• Numero MDL: MFCD00005040
• Codice UNSPSC: 12171500
• ID PubChem: 24894551
• NACRES: NA.47

Proprietà

• product name: Eosin Y disodium salt, certified by the Biological Stain Commission
• Grado: certified by the Biological Stain Commission
• Livello qualitativo: 200
• Forma fisica: powder
• Composizione: Dye content, ≥90%
• 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

Descrizione

Applicazioni

Eosin Y disodium salt has been used as a counterstain in immunocytochemistry and immunohistochemistry.

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.

Compatibilità

Certified for use as a counterstain against hematoxylin; as a constituent of Wright stain; in modified Nocht′s stain; as a constituent in eosin-methylene blue medium.

Informazioni sulla sicurezza

• Pittogrammi: GHS07
• Avvertenze: Warning
• Indicazioni di pericolo: H317,H319
• Consigli di prudenza: P261 - P264 - P272 - P280 - P302 + P352 - P305 + P351 + P338
• 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