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

115934
View Pricing & Availability

Overview

Replacement Information

Key Specifications Table

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

Pricing & Availability

Catalog Number AvailabilityPackaging Qty/Pack Price Quantity
1159340025
Retrieving availability...
Limited AvailabilityLimited Availability
Stocked 
Discontinued
Limited Quantities Available
Available
    Remaining : Will advise
      Remaining : Will advise
      Will advise
      Contact Customer Service
      Contact Customer Service

      Glass bottle 25 g
      Retrieving price...
      Price could not be retrieved
      Minimum Quantity needs to be mulitiple of
      Upon Order Completion More Information
      You Saved ()
       
      Request Pricing
      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

      Related Products & Applications

      Related Products

      Catalog Number Description  
      109249 Mayer's hemalum solution Show Pricing & Availability
      109844 Eosin Y-solution 0.5% aqueous Show Pricing & Availability
      102439 Eosin Y-solution 0.5% alcoholic Show Pricing & Availability

      Accessories (Primary)

      Catalog Number Description  
      115935 Eosin Y (yellowish) (C.I. 45380) Show Pricing & Availability

      Related Products By: Application Facete

      Related Products By: Brand Facete

      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