A unique collection of 1081 compounds with known anti-cancer activity for high throughput screening (HTS) and high content screening (HCS); Effective tool for molecular mechanism of tumorigenesis, and anti-tumor drug screening; Covers various major targets including PI3K, HDAC, mTOR, CDK, Aurora Kinase, JAK, etc. Detailed compound information with structure, target, activity, IC50 value, and biological activity description; Structurally diverse, medicinally active, and cell permeable; NMR and HPLC validated to ensure high purity and quality;