Click Chemistry

Inositol phosphates

Custom Synthesis

made by SiChem

Custom synthesis and Lifescience tools

Sirius Fine Chemicals SiChem GmbH synthesizes APIs for early stage (Toxicology) drug design. A special field of expertise is the preparation of biologically and pharmacologically active compounds with increased bioavailability (prodrugs).

We are one of the leading providers for inositol phosphates as well as a large variety of membranepermeant and photoactivatable derivatives. Our portfolio has been supplemented by clickable unnatural amino acids and other useful tools for Click-Chemistry.

NEW: tools with PEG-linkers: here you will find a large selection of tools with different length PEG-linkers. These are suitable for click-chemistry-reactions or for biotin- and fluorescence- labelling.

Click-Photocrosslinking compounds

Click-Photocrosslinking compounds for photo-affinity labeling (PAL)


NEmo: New FRET-based reporter system that detects NE activity – now available at Sichem

Rapidly reversible Chemical Dimerizer rCD1 is now available at SiChem


Dear customers and partners, we are all part of a complex supply chain in a globalized world, with all its advantages and disadvantages. We are currently experiencing the rapid global spread of COVID-19 and would like to take responsibility…

SiChem sponsors the “Chemical Biology and Physiology Conference 2019” in Portland

The conference will take place from 12th to 15th of December at the Oregeon Health and Science University (OHSU) in Portland, USA. This biennial international conference focuses on the growing intersection of chemical biology and physiology.…

CPhI in Frankfurt

We will be at the CPhI in Frankfurt on November 6th and we still have available dates - if you  like to meet us, just send us an e-mail and let us know when you will be available (