Gallic Acid CAS 149-91-7

1. Gallic acid is widely utilized in the food industry as an additive in biodegradable packaging films and coatings, where its potent antioxidant and antimicrobial properties significantly extend the shelf life of perishable products like meat, fish, fruits, and vegetables by inhibiting lipid oxidation and microbial contamination .
2. Gallic acid CAS 149-91-7 demonstrates extensive therapeutic potential, including strong antioxidant, anti-inflammatory, anticancer, antimicrobial, and cardiovascular benefits, making it a promising candidate for functional foods, pharmaceuticals, and nutraceuticals aimed at disease prevention and health improvement .
3. Applications of Gallic acid also include its traditional use in writing inks (iron gall ink), its function as a standard in analytical chemistry for measuring total phenolic content (expressed as gallic acid equivalents or GAE), and its role as a cross-linking agent to enhance the mechanical and barrier properties of biopolymers .

1. Store Gallic acid in a tightly sealed container in a cool, dry, and well-ventilated place; it is hygroscopic and light-sensitive, so it must be protected from moisture and light .
2. Keep Gallic acid away from strong oxidizing agents, strong bases, acid chlorides, and acid anhydrides due to incompatibility; it reacts with strong reducing agents, generating heat and flammable/explosive hydrogen gas .
3. Always use Gallic acid CAS 149-91-7 appropriate personal protective equipment (PPE) including chemical-resistant gloves (nitrile), tightly fitting safety goggles, and a particulate filter respirator when handling Gallic acid to avoid dust formation and contact with skin, eyes, and respiratory tract .

1. Immediately contain the Gallic acid spill using personal protective equipment, avoid dust generation (moisten first if appropriate), and prevent material from entering drains or waterways .
2. Carefully sweep up the spilled Gallic acid solid using clean, non-sparking tools and place the collected material into sealed, labeled chemical waste containers for proper disposal according to local, state, and federal environmental regulations .
3. Personnel must Gallic acid CAS 149-91-7 wear suitable PPE including particulate filter respirators during cleanup; Gallic acid is not classified as dangerous goods for transport by some regulations (UN number not assigned) .

1. Gallic acid is classified with a GHS signal word "Warning" (H315, H319, H335) causing skin irritation, serious eye irritation, and may cause respiratory irritation upon dust inhalation; it is considered not hazardous according to GHS criteria by some classifications, but care must be taken .
2. Gallic acid CAS 149-91-7 is combustible with a flash point >250°C; thermal decomposition or combustion produces toxic and irritating fumes including carbon oxides (CO, CO₂). NFPA health rating is 2 (moderate hazard), fire rating is 0 (minimal), and reactivity rating is 1 .
3. Gallic acid has low acute toxicity (oral LD50 in rabbits: 5,000 mg/kg), but at high doses (e.g., 5% in diet) it may cause reduced body weight gain and hematological changes in animal studies; it is toxic to aquatic life with long-lasting effects (EC50 Daphnia magna 19.1 mg/L/48h) . Always consult the specific Safety Data Sheet (SDS) for Gallic acid for complete hazard, first-aid (P305+P351+P338 for eyes), and handling information.