2,5-二基恶唑 2,5-diphenyloxazole
2,4-二羟基甲醛 2,4-dihydroxybenzaldehyde
2,4-二氯苄胺 2,4-dichlorobenzylamine
2,4-二氯苄基氯 2,4-dichlorobenzyl chloride
2,5-二乙氧基胺 2,5-diethoxyaniline
2,4-二氯氧丁酸 2,4-db acid
2,4-d-丁酯 2,4-d-butyl ester
2,4-二氯氧 2,4-dichlorophenoxyacetic acid
2,4-二氯甲酸 2,4-dichlorobenzoic acid
2,5-二氯甲酸 2,5-dichlorobenzoic acid