DNA-Encoded
Library Building Blocks

X-Chem scientists are the pioneering experts in DNA-encoded libraries (DELs). In addition to our industry leading DEL services, we use our custom chemistry expertise to synthesize DEL building blocks with attractive characteristics. When you use our DEL building blocks, you benefit from years of experience in DEL design, to help your hit-identification efforts.

We currently offer 708 DEL building blocks which are ready to attach to DNA (475 compounds on stock and 233 compounds resynthesizeable).

These building blocks are bi- and tri-functionalized:

  • Haloacids
  • Halo amino acids
  • Fmoc-protected amino compounds
  • Amino acids
  • Amino acid esters
  • Boronic acids
  • Aldehyde acids are also available

Compounds can be purchased in mg quantities.

Download X-Chem’s SD File for DEL Building Blocks*

*Must have SD compatible software to extract file