2-(3-Butynyloxy)tetrahydro-2H-pyran

2-(3-丁炔氧基)四氢-2H-吡喃

2-Amino-6-bromobenzothiazole

2-氨基-6-溴苯并噻唑

2-Chloroethyl Methyl Sulfide

2-氯乙基甲基硫醚

2-Iodohippuric Acid

2-碘马尿酸

2-Phenethyl acetate

醋酸苯乙酯

2,2-Dimethylpropiophenone

2,2-二甲基苯丙酮

2,3,5,6-Tetrafluoro-4-(trifluoromethyl)benzyl bromide

2,3,5,6-四氟-4-(三氟甲基)苄基溴

2,5-Di-tert-butylhydroquinone

2,5-二叔丁基氢醌

3-Carboxy-PROXYL

3-羧基-2,2,5,5-四甲基吡咯烷1-氧

3-Isoquinolinecarboxylic acid hydrate

3-异喹啉甲酸 水合物

3,3-Dichloro-1,1,1,5,5,5-hexamethyltrisiloxane

3,3-二氯1,1,1,5,5,5-六甲基三硅氧烷

3,5-Dimethoxybenzoyl Chloride

3,5-二甲氧基苯甲酰氯

4-(Acetylamino)phenyl]imidodisulfuryl difluoride

4-（乙酰氨基）苯基 ] 咪唑二磺酰二氟化物

4-Bromo-3,5-dimethylphenylN-methylcarbamate

4-溴-3,5-二甲苯基-N-甲基氨基甲酸酯

4-Hexen-1-ol, predominantlytrans

4-己烯-1-醇，主要为反式