Screening Libraries

Small molecule screening libraries
for high-throughput screening
and fragment-based screening

Chemical Building Blocks

Specialty chemical building blocks
for hit-to-lead, lead optimization,
and medicinal chemistry programs

Chemistry Services

Synthetic chemistry services including
custom synthesis, medchem support
and exclusive library synthesis

Online Chemical Store

Search our complete inventory of
screening compounds & building blocks
and view up-to-date pricing & availability

Welcome to ChemBridge

ChemBridge Corporation is a global provider of enabling chemistry products and contract research services for small molecule drug discovery. ChemBridge’s extensive portfolio includes over 1 million diverse and target-focused screening compounds, 14,000 chemical building blocks, our Hit2Lead.com on-line chemical store, and high-end, research-intensive custom library and synthetic/medicinal chemistry services. ChemBridge’s research products and services are supported by an experienced, dedicated and friendly customer service and project management team at our San Diego headquarters and by ChemBridge’s impeccable, 21-year track record of innovation, quality and deliverability.


Corporate Profile