Synonyms: Endothelin1 (pig reduced), 1-de-L-cysteine-2-de-L-serine-3-de-L-cysteine-4-de-L-serine-5-de-L-serine-6-de-L-leucine-7-de-L-methionine-8-de-L-asparticacid-9-de-L-lysine-10-de-L-glutamic acid-, cyclic (11?;1,2-Dithia-5,8,11,14-tetraazacycloheptadecane, cyclic peptide deriv.;IRL 1038;IRL-1038;