L-(+)-抗坏血酸, L-(+)-Ascorbic acid

D-天冬氨酸, D-Aspartic Acid

D-天冬氨酸甲酯, D-Aspartic acid 1-methyl ester

4-氮杂吲哚, 4-Azaindole

壬二酸, Azelaic Acid

11-叠氮基十一烷基三乙氧基硅烷, 11-Azidoundecyltriethoxysilane

1,2-双(2-氨基苯氧基)乙烷-N,N,N',N'-四乙酸, BAPTA

碳酸钡, Barium carbonate

碘化钡, Barium iodide

硫酸钡, Barium sulfate