Senn Chemicals
– your CDMO

for SWISS quality peptides and amino acid derivatives

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  • Specialized in peptide synthesis
  • Certified cGMP (manufacturing license Swissmedic, ISO 9001:2015)
  • Independent, family-owned, since 1963
  • Pre-clinical to commercial cGMP supply
  • Solution phase synthesis up to 2’500 L
  • Fmoc solid phase technology incl. prep HPLC and lyophilization
  • Fmoc, Boc, CbZ protected amino acid derivatives
  • From grams to metric ton scale
  • Starting materials, key intermediates and APIs

Senn – your partner in peptide chemistry


Solution and solid phase synthesis Peptides and amino acid derivatives From R&D to commercial cGMP Grams to metric tons


From early research to commercial phase