Rahmadhona, S.Balatif, N.Zamri, A.2014-03-272014-03-272014-03-27Rangga Dwijunanda Putrahttp://repository.unri.ac.id/xmlui/handle/123456789/5938Chalconeof1-(3’-Bromofenil)-3-(4’-Klorofenil)-2 propen-1-on has beensynthesized from3’-bromoasetofenonbystirrermethodandevaluatedfor its toxicity activity. 1-(3’-Bromofenil)-3-(4’-Klorofenil)-2-propen1-onshowedagoodyield, andthen it was characterizedusingUVspectroscopy, IR and 1 H-NMR. Its toxicity activityhasbeen identified usingBrineShrimpLethalityTest(BSLT)againstlarvae ofArtemiasalina Leach. The toxicity value of 1-(3’-Bromofenil)-3-(4’-Klorofenil)-2-propen-1-on obtainedwas1,03mg/ mL. It indicated that the chalconehadagoodtoxicity and potentialasanticancer.other3’-bromochalconeBrineShrimpLethalityTesttoxicityOther