Eosin Y-Stain Solution 1%(w/v) Alcoholic

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Eosin Y-Stain Solution 1%(w/v) Alcoholic

Standard Pink for Routine H&E

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  • Eosin Y 1% Alcoholic is the gold standard counterstain for routine Hematoxylin & Eosin staining worldwide. It provides the perfect, classic pink that every pathologist is trained to read. If the lab does 100 H&E slides a day, this is the eosin the lab needs. Stable, fast, and economical – designed for non-stop routine workload.
  • This is NOT a light or bright variant. This is the original, true pink – The standard against which all other eosins are judged.
  • Standard Pink Shade: Classic light pink to eosinophilic orange – Ideal for routine reporting
  • Alcoholic Base Formulation: Rapid action in ethanol base – 45 sec to 2 min staining, saves time
  • pH Optimized at 4.6-5.0: Acidified with glacial acetic acid for sharp, selective staining
  • Ready-to-Use & Filtered: 0.22 micron filtered, no precipitate, no background staining
  • Batch Certified: Each batch checked on human tissue for staining intensity & clarity
  • High Stability: 24 months shelf life at room temperature, no fading
  • Compatible with All Hematoxylins: Works perfectly with Harris, Ehrlich, Mayer, Gill Hematoxylin
  • H&E works on charge principle. After Hematoxylin (basic dye) stains acidic nuclei BLUE, Eosin Y (acidic dye) stains basic components PINK.
    1. 1. Fixation & Hematoxylin: Nuclei become Blue.
      2. Differentiation: Excess blue removed.
      3. Our Eosin Y 1% Alcoholic: Enters cytoplasm. As an anionic dye, it binds to cationic proteins in cytoplasm, collagen, muscle, RBCs.
      4. Dehydration & Mounting: Pink becomes permanent and transparent.
  • Result – The Perfect H&E
  • Nuclei: Crisp Blue
    Cytoplasm: Shades of Pink (light pink to deep pink)
    RBCs: Orange-Pink
    Collagen: Pale Pink
    Muscle: Deep Pink
  • Standard Pink, Not Dark, No Overstaining , Even if technician leaves slide for 3 min, it won’t become red. Safe for busy labs.
  • 45 Sec – 2 Min Action, Fast Turnaround, 100 slides per hour possible.
  • Alcoholic, Not Aqueous ,No Tissue Detachment. Less water damage vs aqueous eosin. Better cell morphology.
  • Low Background , Clean Slide. White background remains white, nuclei pop out clearly.
  • Consistent Batch to Batch, Same Pink Everyday, Pathologist doesn’t need to re-adjust eyes. NABL audit friendly.
  • IDEAL FOR / RECOMMENDED FOR: High-Workload Histopathology Labs: 50-500 slides per day
  • Medical Colleges & Teaching Hospitals: Students must learn on standard pink first
  • NABL / NABH Labs: Standard reference formulation as per textbooks
  • Technical Specifications:
  • Specification Details
    CAS No: 17372-87-1
    pH: 4.8 ± 0.2
    Appearance: Clear, Transparent, Dark Pinkish-Red Solution
    Staining Time: 45 seconds to 2 minutes
    Storage: Store at 15-30°C, away from direct sunlight
    Stability: 24 Months
    Pack Sizes: 500 ml, 1 Liter, 5 Liter

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