This invention relates to novel polyacetylene compositions, a process of producing the compositions and a method for inhibiting tumors utilizing the compositions. More particularly, the compositions are antitumor polyacetylenes which are derived form marine organisms, i.e., the marine sponge Cribrochalina dura.
This application is a continuation of application Ser. No. 879,071 filed June 26, 1986, now abandoned, which in turn is a continuation-in-part of a application Ser. No. 825,060, filed Jan. 31, 1986, now abandoned.