Your trusted partner for peptide synthesis
While our catalog spans 32,000+ research chemicals, our expertise is products involved in peptide synthesis workflows.
Top peptide chemists around the world trust our amino acids to simplify complex syntheses, conquer tough sequences, and save valuable time and resources.

The collection
Our team has spent decades curating a catalog of high-purity reagents—amino acids, linkers, and custom building blocks—that power both cutting-edge discovery and everyday research.
Chem-Impex offers a large library of peptides spanning:
- Amino Acids: Natural and unnatural, Fmoc- or Boc-protected
- Protecting Groups: Fmoc (base-labile), Boc (acid-labile)
- Resins: Wang, Rink Amide, PEG or polystyrene
- Coupling Reagents: DIC, HBTU, HATU, PyBOP
- Solvents: Traditionally DMF/NMP; greener options include DMSO blends, isopropanol, ethanol

Why peptides
Peptides are small chains of amino acids that play a big role in modern science. They combine the best of both worlds: the simplicity of small molecules and the precision of biologics like antibodies. You’ll find peptides at the heart of breakthrough drugs for cancer, diabetes, and infectious diseases—as well as in vaccines, diagnostics, and materials science.
Right now the peptide industry is undergoing a significant transformation, driven by a demand for more efficient, scalable, and sustainable manufacturing processes.
Empower your peptide synthesis workflows
Browse our collection of 1,900+ Amino Acids & Derivatives, and see where your research can go!
The collection
View all- Purity:≥ 99.5% (Chiral HPLC)Synonym:Fmoc-L-Ser(tBu)-OHCatalog Number:02454CAS Number:71989-33-8
Na-Fmoc-Nw-(2,2,4,6,7-pentamethyldihydro-benzofuran-5-sulfonyl)-L-arginine
Purity:≥ 99.7% (Chiral HPLC)Synonym:Fmoc-L-Arg(Pbf)-OHCatalog Number:01964CAS Number:154445-77-9Fmoc-L-glutamic acid g-tert-butyl ester hydrate
Purity:≥ 99.7% (Chiral HPLC)Synonym:Fmoc-L-Glu(OtBu)-OH hydrateCatalog Number:02413CAS Number:204251-24-1, 71989-18-9- Purity:≥ 99% (HPLC)Synonym:Fmoc-Gly-OHCatalog Number:02416CAS Number:29022-11-5
- Purity:≥ 99.7% (Chiral HPLC)Synonym:Fmoc-L-Lys(Boc)-OHCatalog Number:00493CAS Number:71989-26-9
- Purity:≥ 99% (Chiral HPLC)Synonym:Fmoc-L-Ala-OHCatalog Number:02369CAS Number:35661-39-3
Nα-Fmoc- Nδ-trityl-L-glutamine
Purity:≥ 99.7% (Chiral HPLC)Synonym:Fmoc-L-Gln(Trt)-OHCatalog Number:02411CAS Number:132327-80-1- Purity:≥ 99.7% (Chiral HPLC)Synonym:Fmoc-L-Leu-OHCatalog Number:00145CAS Number:35661-60-0
- Purity:≥ 99.5% (Chiral HPLC)Synonym:Fmoc-L-Pro-OHCatalog Number:02448CAS Number:71989-31-6
Nα-Fmoc-Nγ-trityl-L-asparagine
Purity:≥ 99% (Chiral HPLC)Synonym:Fmoc-L-Asn(Trt)-OHCatalog Number:02386CAS Number:132388-59-1
