2-Methylpyrazine

2-甲基吡嗪

2-Oxopiperazine

2-哌嗪酮

2,2′-Bipyrazine

2,2′-Bipyrazinyl

2,2,2-Trichloroethoxysulfonamide

氨基磺酸2,2,2-三氯乙酯

2,3-Dibromobenzo[b]thiophene

2,3-二溴苯并噻吩

2,3,4-Trimethyl-2-pentene

2,3,4-三甲基-2-戊烯

2,4-Diethoxybenzoic acid

2,4-二乙氧基苯甲酸

2,4,6-Tri-tert-butylaniline

2,4,6-三叔丁基苯胺

2-Ethynylbenzaldehyde

2-乙炔基苯甲醛

2-Fluoro-6-hydroxybenzoic Acid

6-氟水杨酸

2-Hydroxy-5-iodopyridine

2-羟基-5-碘吡啶

2-Iodo-3-hydroxypyridine

2-碘-3-吡啶醇

2-Isopropyl-3-methoxypyrazine

2-异丙基-3-甲氧基吡嗪

3-(p-Tolyl)propionic acid

3-(4-甲苯)丙酸

3-Allylsalicylaldehyde

3-烯丙基-2-羟基苯甲醛