Dendrophthoe pentandra (L.) Miq is a plant from the Lorantaceae family that grows as a parasite on the guava plant, so it is called the water apple mistletoe. This research aims to isolate secondary metabolites and test toxicity in water mistletoe leaves (D. pentandra (L.) Miq) from ethyl acetate extract using the Brine Shrimp Lethality Test (BSLT) method. Secondary metabolite compounds were is…