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Herein we highlight products which we consider to be of special interest to our customers.
We now offer a series of Lysine dendrons for chemoselective functionalization of molecules containing carbonyl groups. These multivalent molecules carry diverse types of moieties, such as amine- or hydroxyl-groups, DOTA chelators or triphenylphosphonium (TPP) cations.read more
Conjugates of PEG and folic acid or cholesterol, respectively, combine the positive properties of these molecules. Those conjugates are available with a wide variety of functional groups and different PEG chain lengths to suit your needs.read more
This innovative auxiliary facilitates Native Chemical Ligation at the position of a Glycine residue in a peptide sequence. The auxiliary can be further functionalized, e.g. by PEGylation. Following NCL, the auxiliary is removed by irradiation with UV light.read more
Omniligase-1 enables efficient and racemization-free ligation of two side-chain unprotected peptide fragments at many different positions. Test this innovative enzyme developed by EnzyPep B.V. using the complementary model peptides included in our kit!read more
The regioselective formation of multiple disulfide bonds is often a synthetic challenge. We now offer an innovative safety-catch Cys protecting group that allows selective deprotection of the sulfhydryl group and is a valuable addition to the peptide chemist’s toolbox.read more
The reaction between a tetrazine (Tz) and a trans-cyclooctene (TCO) is the innovative third generation Click reaction that proceeds without the use of copper or other catalyst. It is rapid, fully bioorthogonal and excels at very low concentrations.read more
We now offer N,N'-Bis-Boc-N"-triflylguanidine, at both a very competitive price and our habitual high quality. Find out about the usefulness of this and our other guanylation reagents!read more
l-Ornithine derivative containing peptides play important roles in SAR studies, enzyme inhibition and cancer research. We now offer a variety of Nδ-substituted ornithines containing heterocyclic, aromatic and aliphatic groups, as well as N-substituted C3- and C4-analogs of ornithine.read more
Surprising behavior of NXO-peptides.
It is a significant property of peptides that oxalo-retro azapeptides have the same donor and acceptor distances and properties for hydrogen bridge formation as a tripeptide fragment and therefore induce beta-sheet formation at this position.
A new hydrazone resin enables a convenient way to synthesize peptide hydrazides for Hydrazone Ligation Technique and Native Chemical Ligation (NCL).read more