(2s-cis)-(-)-5-Benzyl-3,6-dioxo-2-piperazineacetic acid Price Not Available inquiry (2s-cis)-(-)-5-Benzyl-3,6-dioxo-2-piperazineacetic acid Supplier Page Catalog Number ACM1228222 Alternative Name(s) (2S-cis)-(-)-5-Benzyl-3,6-dioxo-2-piperazineacetic acid;5-Benzyl-3,6-dioxo-2-piperazineacetic acid;Cyclo(-Asp-Phe) Molecular Formula C13H14N2O4 CAS# 1228222 Size inquiry Supplier Page https://www.alfa-chemistry.com/cas_1228222.htm