A unique collection of 2040 approved drugs for high throughput screening (HTS) and high content screening (HCS); All compounds collected in this library are drugs approved by Food and Drug Administration (FDA), the European Medicine Agency (EMA), or China Food and Drug Administration (CFDA), or included in the US Pharmacopeia (USP) Dictionary, the British Pharmacopoeia (BP), the European Pharmacopoeia (EP), the Japanese Pharmacopoeia (JP), or Chinese Pharmacopoeia (CP) Dictionary; An effective tool for discovering new with old drugs and new drug target identification; Covers various research areas, such as Cancer, Cardiovascular disease, GPCR/G protein, Neuroscience, Membrane Transporter/Ion Channel, Microbiology & Virology, Immunology/Inflammation, Tyrosine Kinase/Adaptors, etc. More detailed compound information with structure, target, activity, IC50 value, and brief introduction; Structurally diverse, medicinally active, and cell permeable; NMR and HPLC validated to ensure high purity and quality;