E4382

Eosin Y disodium salt

Dye content, ≥90%, certified by the Biological Stain Commission, powder

• Sinônimo(s): 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
• Fórmula empírica (Notação de Hill): C₂₀H₆Br₄Na₂O₅
• Número CAS: 17372-87-1
• Peso molecular: 691.85
• Número do índice de cores: 45380
• Beilstein: 3586809
• Número CE: 241-409-6
• Número MDL: MFCD00005040
• Código UNSPSC: 12171500
• ID de substância PubChem: 24894551
• NACRES: NA.47

Propriedades

• Nome do produto: Eosin Y disodium salt, certified by the Biological Stain Commission
• grau: certified by the Biological Stain Commission
• Nível de qualidade: 200
• Formulário: powder
• composição: Dye content, ≥90%
• técnica(s): titration: suitable
• cor: brown
• pH: 6.55 (29 °C, 84 °F)
• pf: 255 — 270 °C (491 - 518 °F at 977.9 hPa)
• solubilidade: H₂O: 1 mg/mL
• densidade: 1.018 g/cm³
• aplicação(ões): diagnostic assay manufacturing; hematology; histology
• temperatura de armazenamento: room temp
• cadeia de caracteres SMILES: [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
• chave InChI: SEACYXSIPDVVMV-UHFFFAOYSA-L

Descrição

Aplicação

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

Ações bioquímicas/fisiológicas

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.

Adequação

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.

Informações de segurança

• Pictogramas: GHS07
• Palavra indicadora: Warning
• Frases de perigo: H317,H319
• Declarações de precaução: P261 - P264 - P272 - P280 - P302 + P352 - P305 + P351 + P338
• Classificações de perigo: Eye Irrit. 2 - Skin Sens. 1
• Código de classe de armazenamento: 11 - Combustible Solids
• Classe de risco de água (WGK): WGK 3
• Ponto de fulgor (°F): 376.9 °F - Pensky-Martens closed cup
• Ponto de fulgor (°C): 191.6 °C - Pensky-Martens closed cup
• Equipamento de proteção individual: dust mask type N95 (US), Eyeshields, Gloves