The present invention relates to a diynoic acid compound and a derivative thereof for uric acid excretion, and a composition containing the same. According to the present invention, a 16-acetyl-9,17-octadecadiene-12,14-diynoic methyl ester compound and 16-acetyl-9,17-octadecadiene-12,14-diynoic methyl ester which is obtained by methylation of the compound can inhibit the crystallization of uric acid and promotes the excretion of uric acid.본 발명은 요산 배출용 디노익산 화합물 및 이의 유도체, 및 이를 포함하는 조성물에 관한 것으로, 본 발명에 따른 16-아세틸-9,17-옥타데카디엔-12,14-디노익산(16-acetyl-9,17-octadecadiene-12,14-diynoic acid) 화합물, 상기 화합물의 메틸레이션에 의해 얻어지는 16-아세틸-9,17-옥타데카디엔-12,14-디노익 메틸 에스테르(16-acetyl-9,17-octadecadiene-12,14-diynoic methyl ester)는 요산의 결정화를 저해할 수 있고, 요산의 배출을 촉진할 수 있다.