An amide form of trans-cinnamic acid and a metabolite of Streptomyces; inhibits growth of BEL-7402 human hepatoma cells and HT-1080 fibrosarcoma cells (IC50s = 1.94 and 1.29 mM, respectively); reduces tumor weight in a mouse model of C26 murine colon carcinoma at 40 and 100 mg/kg, i.p.; reduces tumor weight in a mouse model of murine hepatoma 22 by 42% and 49% at 75 and 150 mg/kg, i.p., respectively; treated food reduces consumption by house and wood mice to 32% and 17% of pretreatment levels, respectively, at 0.8% w/w