Product Description
Safranine (C₂₀H₁₉ClN₄), also known as Safranin O, is a bright red phenazinium dye widely used as a biological stain, redox indicator, and analytical reagent. This synthetic dye belongs to the azinium dye family and is renowned for its vivid coloration, excellent stability, and high staining affinity.
In biological and histological laboratories, Safranine is primarily used for staining nuclei, mitochondria, and lignified plant tissues, while in analytical chemistry, it functions as a redox indicator and spectrophotometric reagent.

Key Features
- Chemical Name: Safranine (Safranin O)
• Chemical Formula: C₂₀H₁₉ClN₄
• CAS Number: 477-73-6
• Molecular Weight: 350.85 g/mol
• Appearance: Bright red to reddish-purple crystalline powder
• Odor: Odorless
• Solubility: Soluble in water and alcohol; slightly soluble in acetone
• Purity: ≥99% (Analytical / Biological Grade)
• Stability: Excellent light and heat stability under normal conditions
Applications
Biological & Microscopy Uses
- Widely used as a biological stain for nuclei, chromosomes, and plant cell walls.
• Serves as a counterstain in Gram staining and bacterial cell differentiation.
• Commonly applied in mitochondrial and chromatin visualization.
• Employed in botanical microscopy to stain lignified and suberized tissues (red coloration).
Analytical & Chemical Applications
- Functions as a redox indicator in oxidation-reduction titrations.
• Used as a spectrophotometric reagent for metal ion detection and dye-sensitized experiments.
• Serves as a reference dye in photometric and fluorescence studies.
• Utilized in battery and electrochemical research as a redox-active compound.
Industrial Applications
- Applied as a colorant in inks, coatings, and polymeric materials.
• Used in textile dyeing for producing bright reddish hues with good fastness.
Safety & Handling
- Hazard: May cause irritation to skin, eyes, and respiratory tract. Harmful if ingested in large quantities.
• Precautions: Handle with gloves, safety goggles, and lab coat. Work in a well-ventilated area or fume hood. Avoid inhalation and prolonged contact.
• Storage: Store in a tightly sealed container, in a cool, dry, and dark place. Keep away from strong oxidizing agents and moisture.
• Emergency: In case of contact, rinse thoroughly with water. Seek medical attention if irritation persists.
Why Choose Safranine?
- High-purity analytical and biological-grade dye.
• Excellent color stability and strong staining properties.
• Suitable for histology, bacteriology, microscopy, and redox analysis.
• Professionally tested and securely packaged for reliable performance.
Price in Bangladesh
Available in 10 g, 25 g, 100 g, and 500 g laboratory-grade packaging at competitive rates.
Bulk and institutional discounts offered for research laboratories, universities, and industrial users.
Where to Buy
Safranine is available from certified laboratory reagent suppliers and chemical distributors throughout Bangladesh.
Why Buy from M/S Bright Scientific Co.?
- Trusted Supplier: Serving laboratories, educational institutions, and research facilities.
• Guaranteed Purity: Verified for analytical and biological-grade applications.
• Affordable Pricing: Competitive rates for small and bulk quantities.
• Reliable Delivery: Fast, secure, and nationwide distribution network.
Contact Information
M/S Bright Scientific Co.
📞 Phone: 01711285976







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