1. Propionic acid ( propanoic acid ) is present in many sweat samples.2. Biobutanol can be produced by lactic and propionic acids , isopropanol and ethanol. 3. The propionic acid which it secretes creates micro-fractures of the surrounding bone. 4. "' Fenbufen "'is a non-steroidal anti-inflammatory drug in the propionic acid derivatives class. 5. Side-products may also form, including butanone, ethyl acetate, formic acid, and propionic acid . 6. Temsirolimus is a dihydroxymethyl propionic acid ester of rapamycin, and its first derivative. 7. Propionic acid ( propanoic acid ) is also present in many foot sweat samples.8. Can you straight-out hydrate acrylic acid with sodium hydroxide, and get 3-hydroxy propionic acid ? 9. An example of this would be the synthesis of porphyrins in refluxing propionic acid . 10. The addition of lysozyme, nitrate, nitrite and propionic acid salts inhibits Clostridia in various foods.