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Chemspace is

Chemspace is the largest database of small molecules: Building Blocks, Fragments, and Screening Compounds. More »

Molecules of the week

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12 April 2019

Chemspace analogs 10

Chemspace is by far the largest database of small molecules to search and buy. You, however, can expand the capabilities to design your molecules with make-on-demand analogs from our database.
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5 April 2019

Chemspace Tiny Fragments

Discover Chemspace Tiny Fragments – a library of PAINS- and undesirable reactivity-free compounds that have 5-8 heavy atoms. More details: https://bit.ly/2YO2uFv.
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1 April 2019

Chemspace analogs Part 9

Chemspace is by far the largest database of small molecules to search and buy. You, however, can expand the capabilities to design your molecules with make-on-demand analogs from our database.
More»