Z-L-Pro-ONp

Z-L-Pro-ONp is a protected amino acid derivative consisting of L-proline bearing an N-benzyloxycarbonyl (Z, Cbz) protecting group and an ONp ester at the carboxylate, forming a proline-based amino acid ONp ester. The molecule contains a carbamate-protected amino functionality and a carboxylate ester linkage to the p-nitrophenyl (ONp) leaving group, with stereochemistry consistent with the L-proline configuration indicated in the name. Z-L-Pro-ONp is used as an activated proline building block in peptide synthesis and related coupling workflows, where the ONp ester can participate in acyl transfer chemistry to assemble peptide bonds under appropriate conditions.

Designed for biological research and industrial applications, not intended for individual clinical or medical purposes.

CAT No: CP25756

CAS No:3304-59-4

Synonyms/Alias:Z-Pro-ONp;3304-59-4;(S)-1-Benzyl2-(4-nitrophenyl)pyrrolidine-1,2-dicarboxylate;ST50409578;benzyloxycarbonyl-l-proline4-nitrophenylester;3304-54-9;Z-L-Pro-ONp;C4877_SIGMA;SCHEMBL4613447;CTK8G3869;GXUFIJVKXYWCAO-KRWDZBQOSA-N;MolPort-003-910-290;ZINC4578893;N-Cbz-L-Prolinep-nitrophenylester;N-CBZ-L-proline4-nitrophenylester;AKOS016003309;VZ31396;AK-81337;KB-251023;FT-0634770;ST24032088;BENZYLXOYCARBONYL-L-PROLINE4-NITROPHENYLESTER;1-[(Phenylmethoxy)carbonyl]-L-proline4-nitrophenylester;1-benzyl2-(4-nitrophenyl)(2S)-pyrrolidine-1,2-dicarboxylate;phenylmethyl(2S)-2-[(4-nitrophenyl)oxycarbonyl]pyrrolidinecarboxylate

Chemical Name:N-alpha-Benzyloxycarbonyl-L-proline p-nitrophenyl ester

Custom Peptide Synthesis
cGMP Peptide
  • Registration of APIs
  • CMC information required for an IND
  • IND and NDA support
  • Drug master files (DMF) filing
M.F/Formula
C19H18N2O6
M.W/Mr.
370,35 g/mole
Size
5 g;25 g;
InChI
1S/C19H18N2O6/c22-18(27-16-10-8-15(9-11-16)21(24)25)17-7-4-12-20(17)19(23)26-13-14-5-2-1-3-6-14/h1-3,5-6,8-11,17H,4,7,12-13H2/t17-/m0/s1
InChI Key
GXUFIJVKXYWCAO-KRWDZBQOSA-N
Canonical SMILES
C1CC(N(C1)C(=O)OCC2=CC=CC=C2)C(=O)OC3=CC=C(C=C3)[N+](=O)[O-]

Useful Tools

Peptide Calculator

Abbreviation List

Peptide Glossary

If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.

Featured Services
Peptide Synthesis ServicesPeptide Modification ServicesPeptide Nucleic Acids SynthesiscGMP Peptide ServiceEpitope Mapping ServicesPeptide Analysis ServicesCustom Conjugation ServicePeptide CDMO
Hot Products
About us

Creative Peptides is a trusted CDMO partner specializing in high-quality peptide synthesis, conjugation, and manufacturing under strict cGMP compliance. With advanced technology platforms and a team of experienced scientists, we deliver tailored peptide solutions to support drug discovery, clinical development, and cosmetic innovation worldwide.

From custom peptide synthesis to complex peptide-drug conjugates, we provide flexible, end-to-end services designed to accelerate timelines and ensure regulatory excellence. Our commitment to quality, reliability, and innovation has made us a preferred partner across the pharmaceutical, biotechnology, and personal care industries.

Our Customers