Nordihydroguaiaretic acid

Nordihydroguaiaretic acid (CAS 500-38-9), commonly identified in procurement as NDGA, is a naturally derived phenolic antioxidant extracted from the creosote bush.

Where is Nordihydroguaiaretic acid used?

• Food processing: lipid oxidation inhibitor and stabilizer that delays rancidity in fats, oils, and lipid-rich formulations
• Pharmaceutical: antioxidant excipient protecting active ingredients and lipid-based drug delivery systems from oxidative degradation
• Personal care and cosmetics: antioxidant protection and UV stabilization in creams, lotions, and suncare formulations
• Research and specialty chemical buyers source NDGA as a reference standard or active compound in investigational formulations targeting oxidative stress pathways.

Commercial specifications

• High-purity grades for pharmaceutical and analytical applications
• Packaging from small laboratory quantities to bulk industrial supply