Table 2. Property subsets of ZINC^a.

^aThese are general purpose screening libraries representing current opinions in the field. Standard subsets are the biggest and have the most chemical diversity with 0–10 week delivery times. Clean subsets have only molecules with benign functionality; all molecules with potentially problematic functionality such as thiols, aldehydes, and Michael acceptors have been removed. Now subsets are in stock only for rapid 2 week delivery times (see Figure 2).