Rose Bengal is a classic xanthene type red fluorescent dye and photosensitive agent with stable chromogenic property and excellent photodynamic activity. It is widely used in biological staining, microbial detection and laboratory biochemical analysis, commonly applied for staining bacteria, fungi, cells and tissue sections to improve observation clarity under microscope. In medical field, it serves as important diagnostic reagent for eye disease detection, especially used in corneal injury and ocular surface lesion screening. It is also a typical photosensitizer applied in photodynamic therapy research, which can generate active oxygen under specific light irradiation to inhibit abnormal cell activity. In food and daily chemical industry, it is used as coloring agent for cosmetic products and food coloring auxiliary material after strict dosage control. Besides, it is frequently used in water quality testing, environmental microbial monitoring and scientific research experiment marking. With stable coloring effect, good water solubility and mature application technology, this product has become indispensable laboratory reagent and medical auxiliary material, possessing stable demand in scientific research, clinical medicine and biochemical industry.

This product belongs to chemical dyestuff with mild irritation and certain photosensitive characteristics. Inhalation of fine powder will cause slight irritation to respiratory tract and nasal mucosa, so operators need to wear dust-proof mask and keep working environment well ventilated during use. Long-term direct skin contact may cause local skin dryness, redness and photosensitive dermatitis under sunlight exposure, staff must wear protective gloves and avoid direct sunshine contact after skin contact, and clean skin with clean water timely. Once splashed into eyes, it will cause redness, stinging and foreign body sensation, immediately flush eyes with plenty of running water for more than fifteen minutes and seek medical treatment in time. Accidental ingestion may cause mild gastrointestinal discomfort such as nausea and stomach upset, do not take irritant food and receive proper medical care. It is easy to fade and decompose under strong light irradiation, so it must be kept away from strong light during storage and use. It shall be stored separately from strong oxidants and acidic chemicals. All waste dye residues and waste liquid shall be treated in accordance with environmental protection regulations to avoid dye pollution to water body and soil.