25+ Years of proven expertise
100+ Chemists dedicated to your success
US & Ireland Facilities for secure, reliable supply

Custom Peptide Synthesis from Discovery
Through Commercial Scale

Adesis provides comprehensive custom peptide synthesis services for pharmaceutical and biotechnology companies developing next-generation peptide therapeutics. With over 100 80% PhD-level chemists, more than 100,000 square feet of US-based facilities, and 17-acres of Ireland based facilities we support projects from milligram quantities through kilogram quantities using integrated solid-phase and solution-phase synthesis approaches.

Building Block Selection
Bond Formation (Coupling)
Isolation & Purification
Testing & Characterization
Building Block Selection

Customer recommendation, literature review, use test

Bond Formation (Coupling)
  • Activate carboxyl group of AA
  • Couple activated AA with amino group
  • Create desired sequence
  • IPC: Kaiser Test, FMOC Quantification
Isolation & Purification
  • Cleave from Resin
  • Purify by SPE, RP-HPLC, CIEX
Testing & Characterization
  • MS, HPLC, Amino Acid Analysis
  • Identity, Purity, Sequence

Proven Expertise and Scalability

Our experts bring deep industry experience in biotech, pharmaceuticals, and electronic-grade specialty monomers—where high purity is non-negotiable. We offer rapid scalability from gram-scale proof-of-concepts to kilo-scale production of targets and intermediates, ensuring you advance your pipeline with speed and precision.

Technical Infrastructure

  • CS536X Automated Synthesizer | 20 mL to 2 L vessels | Inert atmosphere | Real-time monitoring
  • Purification: SPE | Preparative RP-HPLC | CIEX | Orthogonal strategies for >95% purity
  • Analytics: HPLC-MS/UPLC-MS | High-res MS | Multi-nuclei NMR | Amino acid analysis | Peptide mapping
  • Quality: ISO 9001:2015 certified | ICH Q7 elements |
    Full CoA documentation

Synthesis Methodologies

  • Synthesis of peptides (Mw >1,000) and oligonucleotides (PMOs, Mw ~7,000)
    • Solid-phase (0.1 to ~10 mmol)
    • Solution-phase (multi-gram scale)
  • Solid-phase strategy uses standard methods, under inert atmosphere & mechanical agitation if necessary
    • Production of linear and cyclic custom peptides
  • Solution-phase uses various size reaction vessels and standard coupling agents
    • Production of linear peptide fragments
  • Next-generation scalability: CS536X
    • Research scale: 20 to 200 mL reaction vessel
    • Mid-pilot scale: 500 mL to 2 L reaction vessel

Need Chemistry Support for a Device Program?

Let’s discuss your technical challenge.