The MCE 1K Drug Fragment Library consists of 1,168 drug fragments. These drug fragments are derived from 2,946 FDA-approved drug molecules, and fragments from one drug can appear in other drugs, so these fragments are somewhat correlated with good PK/PD properties. Fragment-based screening can reserve enough chemical space for subsequent structural optimization. This compound library is an essential tool for drug screening based on FBDD (Fragment-Based Drug Discovery).

For pre-dissolved solutions, 10 mM for compounds with the solubility not lower than 10 mM, and 2 mM for compounds with solubility between 2 mM and 10 mM.