A unique collection of 130 cell cycle related compounds for high throughput screening (HTS) and high content screening (HCS); Targets include CDK, ROCK, Aurora Kinase, ATM/ATR, DNA-PK, DNA/RNA Synthesis, etc.; Effective tool for research in cell cycle and related diseases, such as cancer, cardiovascular diseases, inflammation, neurodegenerative diseases, etc.; Safety and effectiveness of the small molecules have been demonstrated through preclinical and clinical research, and some of them are FDA approved; Detailed compound information with structure, target, activity, IC50 value, and biological activity description; Structurally diverse, medicinally active, and cell permeable; NMR and HPLC/LCMS validated to ensure high purity and quality