英文同义词
Pyrazine, 3-chloro-2,5-dimethyl-;3-CHLORO-2,5-DIMETHYL-1,4-DIAZINE;3-CHLORO-2,5-DIMETHYLPIAZINE;3-CHLORO-2,5-DIMETHYLPYRAZINE;2,5-Dimethyl-3-chloropyrazine;3-Chloro-2,5-diMethylpyrazine, 97+%;3-Chloro-2,5-diMethylpyrazine 98%;3-Chloro-2,5-dimethylpyrazine >