2-Methyl-1,5-hexadiene

2-甲基-1,5-己二烯

2-Nitrophenylboronic acid

2-硝基苯硼酸

2,2′-Dibromobiphenyl

2,2′-双溴双苯

2,2,2-Trifluoro-2′,4′-dimethoxyacetophenone

2,2,2-三氟-2′,4′-二甲氧基苯乙酮

2,3-Dichlorobenzoic Acid

2,3-二氯苯甲酸

2,3,5-Trichlorobenzoic acid

2,3,5-三氯苯甲酸

2,4-Dichloro-5-fluoropyrimidine

2,4-二氯-5-氟嘧啶

2,4,5-Trifluorobenzaldehyde

2,4,5-三氟苯甲醛

2,4,6-Trimethylbenzoyl Chloride

2,4,6-三甲基苯甲酰氯

2,5-Dichloro-1,4-benzoquinone

2,5-二氯-1,4-苯醌