The high percentage of unique compounds in our Screening Collection has been attained on account of a large stock of proprietary Building Blocks (over 38 000 structures). While designing Building Blocks our major selection criteria include low molecular weight and the presence of pharmacophore groups. Keeping a record of the latest scientific trends and advances in medicinal chemistry and combining them with our own findings provide discovery chemists with new original compounds for their projects.

All compounds prepared in our laboratories are the result of creative and innovative work of our chemists. Your suggestions regarding structural modifications of the catalog structures are most welcome. Your modifications will be carefully considered and the modified products will be offered as soon as possible.

You can search and order Building Blocks on-line.

Our current catalog update rate is ca. 1 000 structures per month. Please make sure to download the up-to-date database of Enamine Building Blocks.

Customers located in North America and Europe may request rush delivery of selected building blocks in available batch sizes (usually 1 g batches). The ordered compounds are normally delivered within 48 hours. Please download current database of Buildings Blocks available for the rush delivery. The rush delivery service is provided without additional charges for a limited time.

Featured articles providing more information about selected Building Blocks are presented in a series of Product Focus issues.

Premium Building Blocks

You can request a printed copy of the 2007/2008 building block selection catalog (ca. 4 000 diverse structures).