A unique collection of 228 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.;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;