L-histidyl-2-methylalanyl-L-a-glutamylglycyl-L-threonyl-L-phenylalanyl-L-threonyl-L-seryl-L-a-aspartyl-L-valyl-d8-L-seryl-L-seryl-L-tyrosyl-L-leucyl-L-a-glutamylglycyl-L-glutaminyl-L-alanyl-L-alanyl-N6-[N-(17-carboxy-1-oxoheptadecyl)-L-?-glutamyl-2-[2-(2-aminoethoxy)ethoxy]acetyl-2-[2-(2-aminoethoxy)ethoxy]acetyl]-L-lysyl-L-a-glutamyl-L-phenylalanyl-L-isoleucyl-L-alanyl-L-tryptophyl-L-leucyl-L-valyl-L-arginylglycyl-L-arginyl- Glycine, trifluoroacetic acid (1:4)