Rose Bengal

Product Description

Rose Bengal (C₂₀H₂Cl₄I₄Na₂O₅) is a bright pink-red xanthene dye widely used as a biological stain, photosensitizer, and analytical reagent. It exhibits intense fluorescence and high light sensitivity, making it valuable for ophthalmic diagnostics, photodynamic therapy, and laboratory staining applications.
In analytical chemistry, Rose Bengal serves as a colorimetric and fluorescent indicator, while in biomedical and industrial research, it is utilized for cell viability assays, protein staining, and singlet oxygen generation.
Its excellent stability, water solubility, and purity make it a versatile dye for both laboratory and clinical applications.

Key Features

• Chemical Name: Rose Bengal
  • Chemical Formula: C₂₀H₂Cl₄I₄Na₂O₅
  • CAS Number: 632-69-9
  • Molecular Weight: 1017.64 g/mol
  • Appearance: Dark red to purplish-red powder
  • Odor: Odorless
  • Solubility: Soluble in water, ethanol, and methanol
  • Purity: ≥99% (Analytical / Biological Grade)
  • Absorption Maximum (λmax): ~548 nm
  • Fluorescence Emission (λem): ~570–580 nm
  • Stability: Stable under normal storage; photosensitive (store protected from light)

Applications

Analytical & Laboratory Uses

• Used as a staining dye for biological tissues, cells, and microorganisms.
  • Acts as a spectrophotometric reagent and fluorescent indicator in chemical analysis.
  • Applied in microscopy and histology for selective staining of damaged or dead cells.
  • Serves as a photosensitizer in singlet oxygen and photochemical studies.

Medical & Pharmaceutical Applications

• Commonly used in ophthalmology for detecting corneal abrasions, ulcers, and conjunctival damage.
  • Investigated in photodynamic therapy (PDT) for cancer and microbial inactivation studies.
  • Used in biomedical assays and diagnostic formulations for its bright color and fluorescence.

Industrial & Research Applications

• Applied as a colorant in inks, coatings, and biological tracers.
  • Used in environmental and photochemical research for tracking and oxygen detection.
  • Serves as a reference dye in fluorescence calibration and optical system testing.

Safety & Handling

• Hazard: May cause irritation to eyes, skin, and respiratory tract. Harmful if ingested or inhaled in large amounts.
  • Precautions: Handle with gloves, goggles, and lab coat. Avoid direct light exposure during handling. Use in a well-ventilated area or under a fume hood.
  • Storage: Store in a tightly closed container, in a cool, dry, and dark place away from light and oxidizing agents.
  • Emergency: In case of contact, rinse thoroughly with water. Seek medical advice if irritation persists.

Why Choose Rose Bengal?

• High-purity analytical and biological-grade quality.
  • Excellent fluorescence and photo-reactive properties.
  • Suitable for laboratory, diagnostic, and photodynamic research.
  • Professionally tested and securely packaged for safety and reliability.

Price in Bangladesh

Available in 10 g, 25 g, 100 g, and 500 g laboratory-grade packaging at competitive prices.
Bulk and institutional discounts available for research, medical, and industrial users.

Where to Buy

Rose Bengal can be purchased from certified chemical suppliers and laboratory reagent distributors across Bangladesh.

Why Buy from M/S Bright Scientific Co.?

• Trusted Supplier: Serving laboratories, research institutions, and medical sectors.
  • Guaranteed Purity: Verified for analytical, diagnostic, and photochemical applications.
  • Affordable Pricing: Competitive rates for both small and bulk orders.
  • Reliable Delivery: Fast, safe, and nationwide supply service.

Contact Information

M/S Bright Scientific Co.
📞 Phone: 01711285976