英文同义词:2,3-DIMETHYLACRYLONITRILE;1-METHYL-1-PROPENYLCYANIDE;2-CYANO-2-BUTENE;2-METHYL-2-BUTENENITRILE;2-methyl-2-butenenitril;2-methyl-crotononitril;2-methylcrotononitrile;alpha,beta-dimethylacrylonitrile
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