Basic Information

Structural Information

• Structure Type: Natural phenolic cinnamic acid derivative
• Structural Features: Contains ortho-diphenol group and α,β-unsaturated carboxylic acid double bond; strong free radical scavenging capacity, easy to oxidize under light and alkaline environment

Physical & Chemical Properties

• Appearance: Light yellow crystalline powder
• Odor: Odorless
• Melting Point: 196–198 °C (decomposition)
• Solubility: Slightly soluble in cold water, soluble in hot water, ethanol, methanol, acetone; soluble in alkaline aqueous solution; insoluble in chloroform, petroleum ether
• Stability: Unstable under strong light and high temperature, easy oxidation discoloration; stable under weak acid conditions; reacts with metal ions to form colored complexes

Synthesis & Applications

Production Method

1. Plant extraction: Separated from coffee, propolis, eucommia leaves, chrysanthemum
2. Chemical synthesis: Condensation of protocatechuic aldehyde with malonic acid

Main Applications

1. Cosmetic raw material: Antioxidant, brightening, anti-photoaging additive
2. Health care raw material: Antioxidant nutritional supplement, auxiliary raw material for cardiovascular care products
3. Food additive: Natural antioxidant for edible oil, beverage and baked food
4. Pharmaceutical intermediate: Raw material for anti-inflammatory, antiviral and liver-protecting drug research

Safety & Storage Instructions

• Hazard Classification: Low toxicity, dust slightly irritates eyes and respiratory tract
• Personal Protection: Dust mask, nitrile gloves and goggles, operate in ventilated environment
• Storage Condition: Hermetically sealed, cool dark dry warehouse, isolate alkaline substances and metal salts
• Transportation: General plant extract raw material, avoid direct sunlight and dampness

Quality Specifications

• Purity: ≥98.0% (HPLC)
• Loss on Drying: ≤0.5%
• Residue on Ignition: ≤0.1%
• Heavy Metal (Pb): ≤10 ppm

Information Summary Table