Home » Shop » Chemicals » Biological Stains » Eosin Y 1%

Eosin Y 1%

w/v in Denatured Ethanol
Item # E1001
Weight N/A
Dimensions N/A
Available Size(s)

500mL

Manufacturer

Packaging Type

Poly

Safety Data Sheet View/Download SDS

Counterstain for Cytoplasmic and Connective Tissue Detail

Product Overview

Eosin Y Solution is a widely used acidic counterstain in histology and cytology, formulated to provide brilliant pink to red coloration of cytoplasmic structures, red blood cells, and connective tissues. Most commonly paired with Hematoxylin in the H&E (Hematoxylin and Eosin) stain, Eosin Y offers sharp contrast by staining acidophilic (basic) components, highlighting cellular detail and enhancing tissue architecture for microscopic analysis.

Eosin Y is compatible with both alcohol- and water-based formulations, and is ideal for use in clinical pathology labs, academic research, and histotechnology training. It is especially valuable in routine examinations of biopsies, blood smears, and tissue samples, offering strong color stability and clear differentiation between cell nuclei and cytoplasm.


Key Features:

  • Acidic counterstain for use in H&E staining protocols
  • Stains cytoplasm, muscle fibers, RBCs, and connective tissue pink to red
  • Provides sharp contrast to Hematoxylin-stained nuclei (blue to purple)
  • Suitable for formalin-fixed, paraffin-embedded, and frozen tissue sections
  • Compatible with clinical, research, and teaching microscopy workflows
  • Available in ready-to-use formulations for consistent and efficient results

Eosin Y Solution is an essential reagent in routine histological staining, offering vibrant and reliable cytoplasmic contrast that enhances tissue morphology interpretation and diagnostic accuracy.

 

Can’t Find What You Need? We’ve Got You.

Wrong concentration? Missing molarity? Need a different grade or bulk quantity? Can’t find that obscure compound? No problem. We manufacture in-house, partner with hundreds of suppliers, and never require minimums. If you need it—we’ll make it happen.

Your Formula, Your Way

Looking for something specific? Let us know what you need—different grade, abnormal concentration, or oddball spec—and we’ll tailor a solution that fits your exact requirements. No minimums. No red tape. Just lab-ready results, made to order.

Custom & Bulk Sourcing

Can’t find it? We will! Need Bulk quantities? We got you! Tap into 75 years of sourcing know-how and a massive vendor network. Whether it’s rare, restricted, or just plain weird—we’ll track it down and get it to your door. Fast. 

Pug Looking for something with a magnifying Glass

Tired of Scrolling?

Let Us Help
Embrace the Rocky Mountain Reagents difference, we work to ensure hands-on technical expertise from real, dedicated individuals. Let our quality service guide you in finding exactly what you need today!