CAS 131477-20-8 appears in our catalog under these names: H-D-Pro-OEt hydrochloride, 97%, Ethyl D–prolinate hydrochloride, D-Proline ethyl ester hydrochloride, 98% , H-D-Pro-OEt HCl 97%, (R)-Ethyl pyrrolidine-2-carboxylate hydrochloride, 97%. Offered by: Combi-blocks, GLPBio, Thermo Scientific (Alfa Aesar), Ambeed, Fluorochem. Available pack sizes: 1g, 10g, 5g, 25g, 100g.