ChemBridge
The Gold Standard in
Small Molecule
Chemical Libraries
and Building Blocks
Screening
Compounds
More than 1.3 million compounds available with novel compounds added each year
Diversity & Other
Pre-selected Libraries
High quality, structurally diverse pre-selected, pre-plated sets and other pre-selected, pre-plated options
Targeted & Specialty Chemical Libraries
Target specific, disease area focused and other specialty libraries
Building
Blocks
Reagents to support hit-to-lead and lead optimization programs
SEARCH & ORDER ONLINE
Use ChemBridge's hit2lead.com site to search our complete stock of screening compounds and building blocks and to order online using a purchase order, card or PayPal

what's
new?
CORE LIBRARY STOCK EXPANDED
ChemBridge continues to grow its stock of high, quality, lead-like screening compounds with increased 3D structure by expanding the CORE Library Stock with new chemical library compounds based on novel ChemBridge designs.
EXPLORE CHEMBRIDGE LIBRARIES
Browse information on thousands of articles citing the use of ChemBridge chemical libraries and chemical compounds across a wide range of research areas
upcoming
events...
CHI Drug Discovery Chemistry 2026
Delegate
April 13 to 16, 2026 – San Diego, CA, USA
