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cx19880822

新虫 (初入文坛)

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9楼: Originally posted by cx19880822 at 2014-02-17 15:34:11
请问你的异构体在哪买的?能留个联系方式吗?  谢谢

(2R,4R)-4-甲基-2-哌啶甲酸乙酯的异构体?  你需要哪几个?
11楼2015-03-16 13:57:23
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六六593166

新虫 (初入文坛)

亲,2R,4S-4-甲基-2-哌啶甲酸乙酯,2S,4R-4-甲基-2-哌啶甲酸乙酯这2个从哪买呀?
12楼2016-10-21 12:26:50
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