4,7,8,9-Tetra-O-acetyl-N-acetylneuraminic Acid Methyl Ester

4,7,8,9-四-O-乙酰基-N-乙酰神经氨酸甲酯

1-Acetyl-4-(4-hydroxyphenyl)piperazine

1-乙酰-4-(4-羟苯基)哌嗪

2-Aminophenyl Phenyl Sulfone

2-氨基二苯砜

2-Amino-4-methyl-3-nitropyridine

2-氨基-4-甲基-3-硝基吡啶

4-Amino-5-chloro-2,6-dimethylpyrimidine

4-氨基-5-氯-2,6-二甲基嘧啶

Acyclovir

阿昔洛韦

2-Amino-3,5-dichloro-6-methylpyridine

2-氨基-3,5-二氯-6-甲基吡啶

1-Acetyl-2-imidazolidinone

1-乙酰基-2-咪唑啉酮

2-Chloro-6-methylaniline

2-氯-6-甲基苯胺

3-Amino-4-fluorobenzoic Acid

3-氨基-4-氟苯甲酸