Ingenol-5,20-acetonide-3-O-angelate (CAS: 87980-68-5) is a high-purity natural diterpene ester derived from Euphorbia peplus.This compound is a potent protein kinase C (PKC) activator, widely used in biomedical, pharmaceutical, and signal transduction studies.We supply ≥98% research-grade Ingenol-5,20-acetonide-3-O-angelate with full analytical support (COA, HPLC, MS, NMR), ideal for use in anticancer mechanism, apoptosis, and natural product chemistry research.