ZINC26

This is the main page for ZINC26, the new version that was started in spring of 2026.

The new database is organized around a set of principles.

ZINC26 is organized into three main areas.

1. Purch - purchasable molecules

Catalogs of purchasable molecules are organized as follows:

• cc - chemistry commons. These can be made from commercially availabile building blocks
• ise - in stock economical (5 of these so far)
• iso - in stock other (192 of these)
• ode - on demand economical (6 of these, working)
• odo - on demand other (41 of these)
• oth - other catalogs (5 of these)

2. Bioact - bioactive molecules from public sources

There are three kinds of bioactives: invitro, invivo and natural

3. Purchbioact - purchasable bioactives and their close analogs

• for example Purchbioact/invivo/approve/fda1/oth/DB00250.ambint.src.txt.anon.map.txt

is FDA approved molecules, as located within the "other" catalog Ambint. Here, the molecule DB00250.

5. Building blocks

There are also

• 2D searching tools
• 3D databases for docking in ready-to-download formats