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氟吡啶系列苯環系列 氯吡啶系列溴吡啶系列甲酸系列氰基吡啶系列氨基吡啶系列羥基吡啶系列甲氧基、甲基吡啶系列其它吡啶系列
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3,4-二氟苯甲酸 3,4-Difluorobenzoic acid 456-86-7 查看詳細
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