Ethyl (S)-1-(tert-butoxycarbonyl)-5-oxopyrrolidine-2-carboxylate

Also known as: Boc-Pyr-Oet, Boc-L-Pyr-OEt, Boc-L-pyroglutamic acid ethyl ester, N-Boc-L-pyroglutamic acid ethyl ester, N-tert-Butoxycarbonyl-L-pyroglutamic acid ethyl ester, (S)-N-alpha-t-Butyloxycarbonyl-pyroglutamic acid ethyl ester, Ethyl (S)-1-Boc-5-oxopyrrolidine-2-carboxylate, (S)-1-tert-Butyl 2-ethyl 5-oxopyrrolidine-1,2-dicarboxylate, 1-(tert-Butyl) 2-ethyl (2S)-5-oxopyrrolidine-1,2-dicarboxylate, Ethyl N-(tert-Butoxycarbonyl)-L-pyroglutamate, 1-O-tert-butyl 2-O-ethyl (2S)-5-oxopyrrolidine-1,2-dicarboxylate

Ethyl (S)-1-(tert-butoxycarbonyl)-5-oxopyrrolidine-2-carboxylate (CAS 144978-12-1) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H19NO5 and a molecular weight of 257.283 g/mol. Key properties include a melting point of 54 °C, a boiling point of 375.0±35.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 180.6±25.9 °C. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.

CAS No.

144978-12-1

Jingsj CID

J-1110038-2

Molecular Formula

C₁₂H₁₉NO₅

Molecular Weight

257.283 g/mol

Category

Organic Acids

Last updated

8/21/2026