Blog - News
08/04/2026
Rigid Arginine Derivatives for SPPS
Two new guanidino proline building blocks turn the open arginine backbone into a constrained ring scaffold, providing rigid arginine analogs for Fmoc-SPPS. Read on to learn more!
08/04/2026
Monodisperse PEGs – Defined Length, Reliable Results
Monodisperse PEGs replace averages with a precise composition. Find out how single-length PEG derivatives can simplify your analysis and improve the reproducibility of your workflows.
25/03/2026
The Endless Variability of Piperidine-Based Amino Acids
Pipecolic, nipecotic, and homonipecotic acid are the basic motifs that combine piperidine with carboxylic acids. And they are only the starting points for countless MedChem building blocks.
25/03/2026
Proximity-Induced SuFEx Click Chemistry
Fluorosulfate-tyrosine (OSF-Tyr) brings reactive docking sites into proteins and peptides. Discover this “click-type” and learn how proximity-activated SuFEx chemistry enables covalent modification.
11/03/2026
The Self-Immolative PAB Spacer
Closing the gap! For better accessibility and facilitated introduction of self-immolative linker constructs, we are offering a para-amino benzyl alcohol derivative for Fmoc SPPS.
11/03/2026
PotM: Click faster than you can Click!
Picolyl azide-based linkers allow for ultra-fast CuAAC in the presence of extremely low copper concentrations – even in cellular environments that don’t tolerate usual click conditions.
25/02/2026
Hydrazide as Asp Side-Chain Protecting Group
Keep your peptide synthesis clean – prevent aspartimide formation by using our novel aspartic acid hydrazide building block Fmoc-L-Asp(NH-NMe-Boc)-OH. Read our blog for more information!
25/02/2026
Successful Audit by PharmaKorell
Iris Biotech was successfully audited by PharmaKorell GmbH for compliance according to Good Distribution Practice (GDP). You want to know more? Read our blog to get all details!
11/02/2026
Masking the Peptide Backbone in SPPS
Backbone protecting groups provide peptides with temporary disguise: they mask backbone amides to control reactivity and suppress aggregation until synthesis is complete. Learn more!
11/02/2026
PotM: Staple and Watch your Peptide in One
Diyne-girder bridged stapled peptides in the ideal helical geometry are accessible through our new alkyne functionalized building block. They can be watched by Raman microscopy.