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115935 Eosin Y (yellowish) (C.I. 45380)

115935
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Overview

Replacement Information

Key Specifications Table

CAS #EC NumberHill FormulaMolar Mass
17372-87-1 241-409-6 C₂₀H₆Br₄Na₂O₅ 691.86 g/mol

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          Description
          Catalogue Number115935
          DescriptionEOSIN Y (YELLOWISH)(C.I. 45380) FOR MICR
          OverviewEosin Y (C.I. 45380) is a CERTISTAIN® dry dye for microscopy that is often used as a counterstain, vizualising proteins, connective tissues, fibers and keratin in sample material of human origin. Depending on user requirements and personal preferences, it can be used for the preparation of the commonly used aqueous or alcoholic Eosin Y staining solutions. This staining solution will mostly be used for routine staining in the hematoxylin-eosin staining process (H&E). The H&E staining process is the most frequently used staining method for histological material. Due to the hematoxylin solution, the nuclei will appear blue to dark violet in color and the Eosin Y solution will stain the cytoplasma and intercellular substances red-orange.
          As the Eosin Y dye belongs to the portfolio of Certistain® dyes, it is chemically analyzed according to strict specifications before release (CE marked and IVD product) and a high staining quality, with reliable staining results is guaranteed.
          References
          Product Information
          CAS number17372-87-1
          EC number241-409-6
          Hill FormulaC₂₀H₆Br₄Na₂O₅
          Molar Mass691.86 g/mol
          HS Code3204 12 00
          Structure formula ImageStructure formula Image
          Quality LevelMQ300
          Applications
          ApplicationCertistain® dry dye used for counterstaining
          Biological Information
          Physicochemical Information
          Melting Point295 - 296 °C
          pH value9.2 (10 g/l, H₂O, 20 °C)
          Bulk density710 kg/m3
          Solubility300 g/l
          Dimensions
          Materials Information
          Toxicological Information
          LD 50 oralLD50 Rat > 2000 mg/kg
          Safety Information according to GHS
          Hazard Pictogram(s) Hazard Pictogram(s)
          Hazard Statement(s)H319: Causes serious eye irritation.
          Precautionary Statement(s)P260: Do not breathe dust.
          P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
          Signal WordWarning
          Storage class10 - 13 Other liquids and solids
          WGKWGK 2 obviously hazardous to water
          Disposal3
          Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
          Safety Information
          Hazard Symbols Hazard SymbolsIrritant
          Categories of dangerirritant
          R PhraseR 36
          Irritating to eyes.
          S PhraseS 22-26
          Do not breathe dust.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
          Product Usage Statements
          Storage and Shipping Information
          StorageStore at +2°C to +30°C.
          Packaging Information
          Transport Information
          Supplemental Information
          Specifications
          Dye content (gravimetrically)≥ 85 %
          Identity (UV/VIS-Spectrum)passes test
          Absorption maximum λ max (water)515 - 518 nm
          Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; water)1200 - 1400
          TLC-Testpasses test
          Loss on drying (110 °C)≤ 8 %
          Suitability for microscopypasses test

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          Accessories (Primary)

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          115943 Methylene blue (C.I.52015) Show Pricing & Availability

          Accessories (Secondary)

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          115934 Eosin B (bluish) (C.I.45400) Show Pricing & Availability
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          Categories

          IVD/OEM Materials & Reagents > Microscopy > Dyes for Microscopy > Certistain® Dyes
          Reagents, Chemicals and Labware > Inorganic Reagents > Safety Products and General Applications > Indicators > Acid Alkali Indicators or pH Indicators
          Reagents, Chemicals and Labware > Inorganic Reagents > Safety Products and General Applications > Indicators > Fluorescence Indicators