Violuric Acid CAS 87-39-8

1. Violuric acid CAS 87-39-8 is primarily used as a redox mediator in the laccase-mediator system (LMS), where it is considered the most effective mediator for laccase oxidation reactions, enabling the degradation of dyes and lignin .
2. Violuric acid serves as an analytical reagent for the spectrophotometric detection, chromatographic separation, and oxidation of cations (e.g., Co²⁺, Cu²⁺, Fe²⁺), forming deeply colored solid complexes (chelates) whose colors depend on hydrate form, pH, and temperature .
3. Violuric acid is employed in biomedical research for its antioxidative properties and protective effects against hypoxia, where it influences metabolic pathways by increasing hepatic glucose and glycogen levels and modulating enzyme activities .
4. Researchers utilize Violuric acid in green nanotechnology as a reducing agent for the synthesis of silver nanoparticles at room temperature, offering an environmentally friendly alternative to harsh chemical methods .

1. Violuric acid CAS 87-39-8 must be stored in a tightly sealed container in a cool, dry, and well-ventilated environment, protected from light and moisture; short-term storage is acceptable at room temperature (RT), while long-term storage at 2-8°C or under inert gas (nitrogen or argon) is recommended for anhydrous forms .
2. Violuric acid is classified with GHS hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation), with signal word "Warning" .
3. Personnel must wear chemical-resistant gloves, protective clothing, and eye/face protection when handling violuric acid, following precautionary statements P261 (avoid breathing dust), P280 (wear protective gloves/eye protection), and P305+P351+P338 (IF IN EYES: rinse cautiously with water) .
4. Note that two CAS numbers exist: 87-39-8 for anhydrous violuric acid (MW 157.08) and 26351-19-9 for the monohydrate form (MW 175.10); both forms are stable for at least 2 years when stored properly under recommended conditions .

1. Isolate the spill area, ensure adequate ventilation, and wear full personal protective equipment including chemical-resistant gloves, safety goggles, and suitable dust respirator when violuric acid is released .
2. Collect Violuric acid by sweeping or vacuuming without creating dust using non-sparking tools, or absorb with inert materials such as diatomite or universal binders, and place into suitable closed containers for disposal .
3. Avoid creating dust clouds during cleanup to prevent respiratory exposure; prevent the product from entering drains or water courses as discharge into the environment must be avoided .
4. Dispose of collected Violuric acid material as hazardous waste according to local, state, and federal environmental regulations through licensed chemical destruction or controlled incineration, noting that the product is not classified as dangerous goods for transport .

1. Violuric acid CAS 87-39-8 is combustible with decomposition occurring at approximately 240-250°C; under fire conditions, hazardous decomposition products include toxic fumes of carbon monoxide, carbon dioxide, and nitrogen oxides (NOx) .
2. Use Violuric acid dry chemical powder, carbon dioxide, alcohol-resistant foam, or water spray to extinguish fires involving the product; do NOT use a direct water jet as it may scatter burning material .
3. Firefighters should wear self-contained breathing apparatus in pressure-demand, MSHA/NIOSH approved, and full protective gear when handling burning violuric acid due to hazardous decomposition gases generated by thermal decomposition .
4. During combustion, may emit irritant and toxic fumes; move containers from the fire area if safe to do so, cool exposed containers with water spray from a protected location, and contain fire runoff to prevent environmental contamination and pollution .