65919-56-4
7-(2-iodoethyl)-1,3-dimethylpurine-2,6-dione
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22247-84-3
7-ethenyl-1,3-dimethylpurine-2,6-dione
23146-05-6
7-(2-溴乙基)茶碱
519-37-9
乙羟茶碱
5878-61-5
7-(2-氯乙基)茶碱