E6003

Eosin Y disodium salt

Dye content ≥85%, Powder

• Synonim(y): 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
• Wzór empiryczny (zapis Hilla): C₂₀H₆Br₄Na₂O₅
• Numer CAS: 17372-87-1
• Masa cząsteczkowa: 691.85
• UNSPSC Code: 12171500
• NACRES: NA.47
• PubChem Substance ID: 24894349
• EC Number: 241-409-6
• MDL number: MFCD00005040
• Colour Index Number: 45380
• Beilstein/REAXYS Number: 3586809

Właściwości

• Nazwa produktu: Eosin Y disodium salt, ≥85 % by HPLC
• form: powder
• Quality Segment: 200
• composition: , ≥85% HPLC
• 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

Opis

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.

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Informacja o środkach bezpieczeństwa

• 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
• Klasa składowania: 11 - Combustible Solids
• wgk: 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