In radiopharmaceutical R&D, non-radioactive precursors are the critical starting point. Their quality, availability, and modular flexibility directly impact your timeline from hit to IND-and ultimately, your chance of regulatory success.

But sourcing these building blocks doesn’t have to be a bottleneck.

That’s where Polydarwin comes in-a platform that offers a wide and well-organised catalogue of cold precursors for nuclear medicine.

Whether you need:

Targeting ligands-small molecules, peptides, antibodies

Linkers-PEG, heterocycles, short peptides

Chelators-DOTA, DOTAGA, NOTA, PSC

…you can find them all in polydarwin, and combine modules flexibly to build your own conjugate.

A snapshot of available products (CAS numbers):

Fragments:

1025796-30-8, 1025796-31-9, 1448440-51-4, 1448440-52-5, 2624108-87-6, 914070-99-8...

Precursors:

1366302-52-4, 2192281-54-0, 2374782-02-0, 2374782-04-2, 2374782-03-1, 2374782-76-8...

Chelators:

2097123-80-1, 306776-79-4, 1375475-53-8...

Polydarwin's strength lies in variety and accessibility-you can browse, compare, and order exactly the building blocks you need, with clear specifications and reliable supply.

Explore the full catalogue:https://www.polydarwin.com

For enquiries:polydarwin@sinopeg.com