11. Common sources are phosphoenol pyruvate, acetyl phosphate, and creatine phosphate. 12. :I do not know that ACE refers to acetyl . 13. Can I ask why the acetyl chloride is so necessary? 14. Within mitochondria, 2-oxoadipate is converted into acetyl -CoA. 15. Differentiated cells also have choline acetyltransferase and acetyl cholinesterase activities. 16. Isocitrate can also be converted into acetyl -CoA for lipid metabolism. 17. Certain flavorings contain diacetyl and acetyl propionyl which give a buttery taste. 18. Acetyl -CoA may also be obtained from the oxidation of fatty acids.19. Acetyl iodide reacts with acetate salts or acetic acid to give the anhydride.20. This process continues until the entire chain is cleaved into acetyl CoA units.