1. Along with hexanoic acid, these total 15% in goat milk fat.

2. A eukaryotic cell can use glucose (C6H12O and hexanoic acid (C6H14O as fuels for cellular respiration.

3. The invention relates to a method for producing 6,6-dialkoxy-5-hydroxy-3-oxo-hexanoic acid esters of general formula (I), wherein the di-anion of an acetoacetic acid alkyl ester is reacted with an aldehyde.

4. The present invention relates to a paste composition for a front surface electrode of a solar cell, which contains nanosilver particles which are surface-treated by hexanoic acid, and to the solar cell which comprises the front surface electrode formed by using the paste composition.