A refers to retinyl palmitate and retinyl acetate. Both groups were given Vitamin C (ascorbyl palmitate) and Vitamin E (mixed tocopherol) supplements. Most commonly, the ester substrate is retinyl palmitate. Isopropyl palmitate is the ester of isopropyl alcohol and palmitic acid. The cetyl ester of palmitic acid (cetyl palmitate) occurs in spermaceti. Ascorbyl palmitate is also marketed as "vitamin C ester". Retinyl palmitate is also a constituent of some topically applied skin care products. Spermaceti consists principally of cetyl palmitate (the ester of cetyl alcohol and palmitic acid), CHCOO-CH. Cetyl palmitate is a component of some solid lipid nanoparticles. A palmitate, riboflavin (vitamin B2), and vitamin D3. Ethylhexyl palmitate is commonly used in cosmetic formulations. Most people respond to oral therapy doxycycline, tetracycline hydrochloride, or chloramphenicol palmitate. In some countries, it is sold as chloramphenicol palmitate ester (CPE). Sodium palmitate is permitted as a natural additive in organic products. These applications use sodium palmitate, which is commonly obtained by saponification of palm oil.