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                   名称 CAS号
                1 无水哌嗪 110-85-0
                2 N-甲基哌嗪 109-01-3
                3 2-甲基哌嗪 109-07-9
                4 4-甲基哌嗪 39539-66-7
                5 羟乙基哌∏嗪 103-76-4
                6 N-氨基已基哌嗪 140-31-8

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