Chinese name: Three harringtonine Chinese alias: English name Harlem through base: HARRINGTONINE English Synonyms: CAS Registry Number: 26833-85-2 Formula: C28H37NO9 Molecular Weight: 531.59 Molecular Structure: Appearance: Harringtonine bases or white yellow crystalline powder Purity: ≥98% Solubility: Three harringtonine insoluble in water, soluble in methanol, ethanol, chloroform, and other organic solvents. Extract Source: Three harringtonine Cephalotaxus Cephalotaxus fortunei. Evergreen trees or shrubs. Uses: Three harringtonine for the determination and identification, pharmacological experiments. Storage: 4 ℃ cold storage, sealed, dark period: 2 years