N-Boc-4,4-difluoro-L-proline methyl ester

Also known as: (2S)-1-tert-Butyl 2-methyl 4,4-difluoropyrrolidine-1,2-dicarboxylate, Methyl (S)-1-Boc-4,4-difluoropyrrolidine-2-carboxylate, 1-tert-Butyl 2-methyl (2S)-4,4-difluoropyrrolidine-1,2-dicarboxylate, N-t-Boc-4,4-difluoro-L-proline methyl ester, 1,2-Pyrrolidinedicarboxylic acid, 4,4-difluoro-, 1-(1,1-dimethylethyl) 2-methyl ester, (2S)-

N-Boc-4,4-difluoro-L-proline methyl ester (CAS 203866-17-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H17F2NO4 and a molecular weight of 265.254 g/mol. Key properties include a melting point of 41-46ºC, a boiling point of 341.2±42.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 160.1±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

203866-17-5

Jingsj CID

J-26192-7

Molecular Formula

C₁₁H₁₇F₂NO₄

Molecular Weight

265.254 g/mol

Category

Organic Acids

Last updated

8/21/2026