115934 Eosin B (bluish) (C.I.45400)

115934
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      Overview

      Replacement Information

      Key Specifications Table

      CAS #EC NumberHill FormulaMolar Mass
      548-24-3 208-943-1 C₂₀H₆Br₂N₂Na₂O₉ 624.06 g/mol

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      1159340025
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          Glass bottle 25 g
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          Description
          Catalogue Number115934
          SynonymsDibromodinitrofluorescein sodium
          DescriptionEOSIN B (C.I. 45400) FOR MICROSCOPY CERT
          OverviewEosin B (C.I. 45400) 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 B 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 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 number548-24-3
          EC number208-943-1
          Hill FormulaC₂₀H₆Br₂N₂Na₂O₉
          Molar Mass624.06 g/mol
          HS Code3204 12 00
          Structure formula ImageStructure formula Image
          Applications
          ApplicationCertistain® dry dye used for counterstaining
          Biological Information
          Physicochemical Information
          pH value6.2 (10 g/l, H₂O, 25 °C)
          Bulk density680 kg/m3
          Solubility300 g/l
          Dimensions
          Materials Information
          Toxicological Information
          Safety Information according to GHS
          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
          Product Usage Statements
          Storage and Shipping Information
          StorageStore at +5°C to +30°C.
          Packaging Information
          Transport Information
          Supplemental Information
          Specifications
          Dye content (gravimetrically)≥ 85 %
          Identity
          - sodium

          passes test
          - UV/VIS-Spectrumpasses test
          Absorption maximum λ max (water)517 - 525 nm
          Spec. Absorptivity A 1%/1cm (λmax; 0.005 g/l; water)800 - 1000
          TLC-Testpasses test
          Loss on drying (110 °C)≤ 8 %
          Suitability for microscopypasses test

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          Accessories (Primary)

          Catalog Number Description  
          115935 Eosin Y (yellowish) (C.I. 45380) 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