Product Details
Category
Cosmetic Preservatives
Molecular Formula
C9H9NaO3
Synonyms
p-Hydroxybenzoic acid ethyl ester sodium salt;SODIUM ETHYL-P-HYDROXYBENZOATE;SODIUM ETHYL 4-HYDROXYBENZOATE
Application
Ethyl 4-hydroxybenzoate has antimicrobial characteristics and is used as preservative in pharmaceutical formulations and cosmetics. It can be combined with other parabens like methyl 4-hydroxybenzoate or propyl 4-hydroxybenzoate. The sodium salt provides improved solubility in water compared to standard ethyl 4-hydroxybenzoate.
Boiling Point
297.5°C at 760 mmHg
Molecular Weight (g/mol)
188.156
Water Solubility
White or almost white, hygroscopic, crystalline powder.