Description

Safranin color is a widely used biological stain, especially known for its application in plant juice extraction tests in biology laboratories. Supplied by Padma Scientific Co., this high-quality laboratory solution is also referred to as Safranin Solution and is essential in various staining protocols used in histology, cytology, and microbiology.

What is Safranin Color?

Safranin Color is a synthetic, cationic dye belonging to the phenazine family. It exhibits a bright red or reddish-pink hue and is highly effective in staining cell components due to its positive charge, which binds easily to negatively charged cellular structures.

Key Properties

• Color: Bright red or reddish-pink

• Chemical Nature: Cationic (positively charged) dye

• Solubility: Easily dissolves in both water and alcohol

Applications

1. Plant Juice Extraction

It  is widely used in biology labs to extract and identify components from plant juice, particularly to highlight different plant cell structures.

2. Counterstaining in Gram Staining

In microbiology, it serves as a counterstain during Gram staining. It differentiates bacteria types by staining Gram-negative bacteria red or pink after the decolorizing step, while Gram-positive bacteria retain the primary violet stain.

3. Staining Cell Nuclei

Safranin binds to nucleic acids, effectively staining cell nuclei red, making it a valuable tool in cytological studies.

4. Botanical Tissue Staining

In botany, it is used to stain lignified tissues such as xylem red, aiding in the detailed study and differentiation of plant tissue structures.

How to Use

In a typical staining protocol like Gram staining:

• Apply Safranin Color as the final step

• Allow it to stain for 30 seconds to 1 minute

• Rinse and observe under a microscope