The cetyl ester of palmitic acid (cetyl palmitate) occurs in spermaceti. The head of the sperm whale is filled with a waxy liquid called spermaceti. This liquid can be refined into spermaceti wax and sperm oil. Tashtego cuts into the head of the sperm whale and retrieves buckets of spermaceti. It is also found in spermaceti, the crystallized fraction of oil from the sperm whale. The spermaceti organs may also help adjust the whale's buoyancy. The name "sperm whale" is a truncation of "spermaceti whale". This wax, brown in color, was then bleached and sold as "spermaceti wax". The first "standard candles" were made from spermaceti wax. The spermaceti was boiled and strained of impurities to prevent it from going rancid. The harvested matter, raw spermaceti, was stored in casks to be processed back on land. It contains compartments of spermaceti separated by walls of cartilage. The spermaceti organ is like a large barrel of spermaceti. This organ may contain as much as of spermaceti. The melon is "not" homologous to the spermaceti organ.