1-ethyl-4-(2-chloroethyl)-3,3-diphenyl-2-pyrrolidinone,Doxapram EP Impurity A

1-ethyl-4-(2-chloroethyl)-3,3-diphenyl-2-pyrrolidinone,Doxapram EP Impurity A

¥ 1.00 ¥ 1.00 1.0 CNY

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