2-乙酰基吡咯, 2-Acetylpyrrole

S-乙酰基硫代碘化胆碱, S-Acetylthiocholine iodide

5-乙酰基戊酸, 5-Acetylvaleric acid

3-(丙烯酰氧基)丙基三甲氧基硅烷, 3-(Acryloyloxy)propyltrimethoxysilane

金刚烷-1,3-二羧酸, Adamantane-1,3-dicarboxylic acid

腺嘌呤盐酸盐, Adenine hydrochloride

戊五醇, Adonitol

D-丙胺酰胺盐酸盐, D-Alaninamide hydrochloride

DL-丙氨酸乙酯盐酸盐, DL-Alanine ethyl ester hydrochloride

(±)-9,10,16-三羟基棕榈酸, (±)-erythro-Aleuritic acid