Ester & DerivativeChina High Purity Acetamidomalonic Acid Diethyl Ester with CAS 1068-90-2 as Intermediate of AA-Dem, Find details about China 2-Acetylamino-Malonic Acid Diethyl Ester, AA-Dem from High Purity Acetamidomalonic Acid Diethyl Ester with CAS 1068-90-2 as Intermediate of AA-Dem