Relaxin CMa(pig), 2B-L-arginine-;3,4,44,45,90,91-Hexathia-8,11,14,17,20,23,26,29,32,35,38,41,48,51,54,57,60,63,66,69,72,75,78,81,84,86-hexacosaazabicyclo[72.11.7]dononacontane,cyclic peptide deriv.; L-Alanine,5-oxo-L-prolyl-L-arginyl-L-threonyl-L-asparaginyl-L-a-aspartyl-L-phenylalanyl-L-isoleucyl-L-lysyl-L-alanyl-L-cysteinylglycyl-L-arginyl-L-a-glutamyl-L-leucyl-L-valyl-L-arginyl-L-leucyl-L-tryptophyl-L-valyl-L-a-glutamyl-L-isoleucyl-L-cysteinylglycyl-L-seryl-L-valyl-L-seryl-L-tryptophylglycyl-L-arginyl-L-threonyl-,cyclic (10®9'),(22®22')-bis(disulfide) withL-arginyl-L-methionyl-L-threonyl-L-leucyl-L-seryl-L-a-glutamyl-L-lysyl-L-cysteinyl-L-cysteinyl-L-glutaminyl-L-valylglycyl-L-cysteinyl-L-isoleucyl-L-arginyl-L-lysyl-L-a-aspartyl-L-isoleucyl-L-alanyl-L-arginyl-L-leucyl-L-cysteinecyclic (8'®13')-disulfide