Propyl p-hydroxybenzoate

Structural Chemical Name: Propyl p-hydroxybenzoate; Trade Name: Nipagin Propyl; Molecular Formula: C10H12O3; Molecular Weight: 180.20; CAS#: 94-13-3; Physical and Chemical Properties: White crystals, soluble in alcohol and ether, almost insoluble in water, relative density (d4102) 1.0630, refractive index (nD102) 1.5050.

Product Quality Standards

Item / Indicator / GB 8851-1988 / B.P 98 / USP24-NF19; Appearance / Colorless crystals or white crystalline powder / ; Content (dry basis) % / 99.0 / 99.0-100.5 / 99.0-100.5; Melting Point / 95-98 / 95-98 / 95-98; Acidity / Qualified / Qualified / Qualified; Sulfate (as SO42-) % / 0.024 / / ; Heavy Metals (as Pb) % / 0.001 / / ; Arsenic (As) % / 0.0001 / / ; Loss on Drying % / 0.50 / 0.50 / 0.50; Residue on Ignition % / 0.05 / 0.1 / 0.05; p-Hydroxybenzoic Acid and Salicylic Acid / Qualified / / ; Identification Test / / / Qualified; Related Substances / Qualified / / ; Solution Appearance / Clear and transparent / ; Organic Volatile Impurities / / / Qualified

Uses: This product is mainly used as a bactericidal preservative in food, cosmetics, and pharmaceuticals, and can also be used as a feed preservative.

Packaging: Packed in plastic bags, 1kg per bag, 20 bags per carton (cardboard box), or packed in plastic inner bags with outer cardboard drums, net weight 25kg or 50kg per drum.

*Special requirements can be negotiated separately.