E6003

Eosin Y disodium salt

Dye content ≥85%, Powder

• Sinónimos: 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 (notación de Hill): C₂₀H₆Br₄Na₂O₅
• Número de CAS: 17372-87-1
• Peso molecular: 691.85
• Colour Index Number: 45380
• Beilstein/REAXYS Number: 3586809
• EC Number: 241-409-6
• MDL number: MFCD00005040
• UNSPSC Code: 12171500
• PubChem Substance ID: 24894349
• NACRES: NA.47

Propiedades

• product name: Eosin Y disodium salt, Dye content ≥85 %
• form: powder
• Quality Level: 200
• composition: Dye content, ≥85%
• technique(s): titration: suitable
• color: brown
• pH: 6.55 (29 °C, 84 °F)
• mp: 255 — 270 °C (491 - 518 °F at 977.9 hPa)
• solubility: H₂O: 1 mg/mL
• density: 1.018 g/cm³
• application(s): diagnostic assay manufacturing; hematology; histology
• storage temp.: 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
• InChI key: SEACYXSIPDVVMV-UHFFFAOYSA-L

Descripción

Application

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 Actions

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.

Información de seguridad

• pictograms: GHS07
• signalword: Warning
• hcodes: H317,H319
• pcodes: P261 - P264 - P272 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Sens. 1
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: 376.9 °F - Pensky-Martens closed cup
• flash_point_c: 191.6 °C - Pensky-Martens closed cup
• ppe: dust mask type N95 (US), Eyeshields, Gloves