Ethyl 3,4-dihydroxybenzoate

Ethyl 3,4-dihydroxybenzoate (CAS 3943-89-3), also known as EDHB or protocatechuic acid ethyl ester, is a synthetic ester of protocatechuic acid.

Where is Ethyl 3,4-dihydroxybenzoate used?

• Pharmaceuticals: stabilises active ingredients and extends shelf life in oral and topical dosage forms by preventing oxidation
• Food and beverage: antioxidant and flavouring agent, effective in fat-containing systems
• Cosmetics and personal care: UV-absorbing and antioxidant properties in suncare and anti-aging products
• Preservation systems: broad-spectrum antimicrobial activity against bacteria and fungi in leave-on and rinse-off formulations
• It protects formulations and finished products from oxidative and photochemical degradation.

Commercial specifications

• Various purity specifications
• Packaging from laboratory quantities to bulk industrial supply