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Pometia pinnata leaves were extracted and fractionated using n-hexane, dichloromethane, ethyl acetate, and methanol. The four fractions obtained were screened for cytotoxic testing using the Brine shrimp lethality test (BSLT) method, n-hexane fraction has the highest LC50 419,855 mg/L.The n-hexane fraction was continued for the isolation stage and a secondary metabolite compound was obtained, namely brassicasterol. The structure of this secondary metabolites was determined using spectroscopic methods (UV-Vis, FTIR, and NMR).

Isolation and Characterization of Brassicasterol from N-Hexane Fraction of Pometia pinnata and its Toxicity Test