Eosin Y, Sigma-Aldrich®
Leverantör: SIGMA-ALDRICH MICROSCOPY
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Varning
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Synonyms:
Solvent Red 43, Field's Stain B, Eosin 225, 2,4,5,7-Tetrabromofluorescein disodium salt, Disodium 2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate, Disodium 2',4',5',7'-tetrabromo-3-oxo-3H-spiro[isobenzofuran-1,9'-xanthene]-3',6'-bis(olate), Tetrabromofluorescein disodium salt, 2′,4′,5′,7′-Tetrabromofluorescein disodium salt, Eosin Y disodium salt
M-Clarity™ quality level = MQ200
Dye content - ≥85%.
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. 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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Formel:
C₂₀H₆Br₄Na₂O₅ MW: 691,86 g/mol Smältpunkt: 255,..270 °C Densitet: 1,018 g/cm³ Flampunkt: 191,6 °C Storage Temperature: Room Temperature |
MDL Number:
MFCD00005040 CAS nummer: 17372-87-1 EINECS: 241-409-6 Merck Index: 13,03634 |
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Specifikation testresultat
| Appearance (Form) | Powder or Crystals |
| Infrared spectrum | Conforms to Structure |
| Solubility (Colour) 1 mg/ml H₂O | Orange to Very Dark Orange and Red to Very Dark Red and Orange-Red and Red-Orange |
| Solubility (Turbidity) | Clear |
| Dye Content | ≥85% |
| pH | 6.55 (29 °C, 84 °F) |
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