Ingenol-3,4:5,20-diacetonide (CAS: 77573-44-5) is a semi-synthetic diterpene ester derivative of ingenol from Euphorbia peplus. It acts as a potent PKC modulator, widely studied for its anticancer, pro-apoptotic, and immunomodulatory effects. We supply ≥98% high-purity Ingenol-3,4:5,20-diacetonide with COA, HPLC, MSDS support, and fast worldwide delivery for pharmaceutical, biomedical, and natural product research.