Nopol (128-50-7) is a bicyclic monoterpene alcohol derived from natural pine oil, widely used in fragrance, flavor, pharmaceutical, and chemical industries. In fragrance, it serves as a key intermediate for synthesizing pine, woody, and floral fragrances, used in soaps, detergents, cosmetics, and perfumes for its fresh, long-lasting pine note. In flavor, it enhances woody and spicy notes in food additives, tobacco, and beverages. As a chemical intermediate, it is critical for manufacturing synthetic resins, plasticizers, and lubricants, and as a raw material for producing terpene-based surfactants. In pharmaceuticals, it acts as a precursor for anti-inflammatory, analgesic, and antimicrobial agents, leveraging its bicyclic structure for drug design. It also functions as a solvent for natural resins, oils, and waxes, and as a stabilizer in polymer production. With its unique structure and versatile reactivity, Nopol is an essential high-value fine chemical bridging natural resources and industrial synthesis.

Nopol is a low-toxicity irritant, posing risks of skin, eye, and respiratory irritation. Skin contact may cause redness, itching, or mild dermatitis; eye contact can lead to severe irritation, tearing, and conjunctivitis. Inhalation of vapor or mist may irritate the respiratory tract, causing coughing, sore throat, or shortness of breath. Acute toxicity: Oral LD50 (rat) = 890 mg/kg; skin LD50 (rabbit) >5,000 mg/kg. Handle in a fume hood with chemical-resistant gloves, safety goggles, and a respirator if ventilation is poor. Avoid contact with strong oxidants and acids to prevent exothermic reactions. Store sealed in a cool, dry place away from heat, sparks, and open flames. In case of leakage, absorb with inert material (sand, earth) and dispose of as hazardous waste. Rinse skin with soap and water; flush eyes with water for 15 minutes; seek medical attention if irritation persists.