Chem-Impex: Your Go-to Source for Everything Peptide Chemistry

Build cleaner, more reliable peptides with Chem-Impex's complete Solid Phase Peptide Synthesis (SPPS) portfolio:  the high-purity amino acids, resins, and reagents that power every stage of the synthesis cycle.

From discovery through scale-up, you'll find every product you need for each stage of your peptide workflow:

Resins and Pre-Loaded Resins 

  * Curated portfolio spanning polystyrene, PEG-based, polystyrene-PEG hybrid, and 2-CTC resins to match your peptide's length, complexity, and scale.

 Fmoc-Protected Amino Acids 

  * Cited where it counts. Our Fmoc amino acids are cited in peer-reviewed work spanning Nature Chemistry, Science Advances, Nature Nantotechnology, etc. From designer peptide-DNA cytoskeletons to targeted radiotheranostics, researchers building precision chemistry keep choosing Chem-Impex.

 Special & Novel Amino Acids 

  * In-stock and ready to ship, don't let rare building blocks stall your project timeline 

Coupling & Deprotection Reagents 

  * HBTU, HATU, PyBOP, DIC, EDC·HCl, and DCC ready to ship for difficult couplings and hindered positions. 40+ years of trusted quality that determines the efficiency, yield, and purity of your final peptide. 

Cleavage Reagents 

  * High-purity TFA and scavengers (TIS, EDT, thioanisole, anisole, phenol) to release peptides from resin without introducing unwanted side reactions.

As a family-owned, minority-owned business, Chem-Impex has combined four decades of hands-on chemistry expertise with the modern building blocks your workflow demands today. Download their SPPS product guide to see the full workflow, from resin selection through purification, and the reagents that support it at every step.