2-乙炔基嘧啶, 2-Ethynylpyrimidine

2-溴-4-甲氧基苯甲醛, 2-Bromo-4-methoxybenzaldehyde

2-Amino-4-chlorobenzotrifluoride

2-氨基-4-氯三氟甲苯

5-Methylpicolinaldehyde

5-甲基吡啶-2-醛

2-Chloro-4-fluorophenylhydrazine hydrochloride

2-氯-4-氟苯肼盐酸盐

4-甲氧基-2(1H)-吡啶酮, 4-Methoxy-2(1H)-pyridinone

2-Amino-3-chlorobenzonitrile

2-氨基-3-氯苯甲腈

2-Amino-3-hydroxybenzoic Acid

3-羟基氨茴酸

2,4-Dimethylphenylhydrazine hydrochloride

2,4-二甲基苯肼盐酸盐

2-benzofuranacetic acid

2-苯并呋喃乙酸