Staining solution reagent 3803650E

solutionfor histologyfor cytology

Overview
Acid Alcohol is a laboratory differentiating solution used in histology and cytology to remove excess hematoxylin and to sharpen nuclear detail after hematoxylin staining for H&E and PAP protocols. Formulated with either 0.5% or 1% hydrochloric acid in 70% reagent-grade ethanol, it supports controlled differentiation to improve reproducibility of staining results.

Key features and intended use

• Removes excess hematoxylin and defines nuclei following hematoxylin staining.
• Designed for routine H&E and PAP staining workflows in histology/cytology labs.
• Available in controlled formulations (0.5% and 1% HCl) to match differentiation requirements.
• Helps standardize staining outcomes and enhance nuclear contrast for microscopic evaluation.
• For professional laboratory use only; follow IFU and SDS for handling and safety.

Available variants / pack sizes

• 0.5% Acid Alcohol — 5 litres (SKU: 3803650E)
• 1% Acid Alcohol — 1 gallon (SKU: 3803650)

Country availability

• Available through regional distributors and direct channels in multiple countries worldwide. Contact your local distributor or Leica Biosystems representative for exact availability and ordering details.

Documents provided (titles)

• IFU: differentiator_rev_a.pdf
• SDS (0.5%): Acid_Alcohol_0.5_AU.pdf
• SDS (1%): Acid_Alcohol_1_EN.pdf
• SDS (1% AU): Acid_Alcohol_1__AU_1.2.pdf

Technical characteristics / specifications

• Commercial name: Acid Alcohol
• Formulations: 0.5% HCl in 70% reagent-grade alcohol; 1% HCl in 70% reagent-grade alcohol
• Intended use: Differentiation after hematoxylin staining for H&E and PAP methods; removal of excess stain and definition of nuclei
• Pack sizes / SKUs: 0.5% — 5 litres (SKU 3803650E); 1% — 1 gallon (SKU 3803650)
• Included documentation: IFU and SDS for applicable strengths
• Brand: Leica Biosystems