This anthraquinone-type anionic acid dyestuff is mainly applied for industrial dye processing and laboratory biological staining research only, prohibited from being added into food, daily oral products and cosmetics for human intake. In textile manufacturing industry, it serves as primary coloring agent for protein fibers including wool, silk and nylon fabrics, featuring uniform dye leveling property and stable color fastness against light and washing under acidic dyeing bath condition, also applicable for leather tanning coloring and paper pulp dyeing production. For biochemistry lab applications, it acts as histological staining reagent for cell and tissue microscopic observation, commonly used for qualitative detection and visualization of protein and nucleic acid samples in in-vitro biochemical assay tests. Small batch high-purity finished product is reserved as color reference standard for dyestuff inspection and HPLC qualitative calibration of similar acidic dye derivatives, no clinical medicinal usage is authorized globally.
GHS hazard grade is Warning with H315 skin irritation and H319 severe eye irritation hazard statements, complete personal protective equipment is required during feeding, powder weighing and solution preparation operations. Operators must equip nitrile resistant gloves, splash-proof safety goggles and dustproof lab coat to prevent dust inhalation, long-term skin contact and accidental ingestion of dyestuff powder. Waste dye mother liquor, leftover solid residues and waste organic solvent containing this compound are categorized as industrial hazardous waste and delivered to qualified professional disposal companies following local environmental protection regulations instead of random domestic waste disposal. Existing toxicity data indicates repeated excessive skin exposure may trigger allergic dermatitis, while acute oral intake can lead to gastrointestinal discomfort such as nausea and abdominal distension; long-term carcinogenicity and reproductive toxicity related complete experimental data remain insufficient currently. Once splashed onto skin or eyes, rinse with abundant running clean water continuously over 15 minutes and seek professional medical treatment if persistent irritation occurs; keep separate storage from strong oxidants and concentrated alkali to avoid chemical structure breakdown and color fading during long-term storage.
