H-Asn(4-aminobutyl)-Ala-Gln(4-aminobutyl)-Phe-Arg-His-Asn(4-aminobutyl)-Ser-Gly-Tyr-Gln(4-aminobutyl)-Val-His-His-Gln-Lys-Leu-Val-Phe-Phe-Ala-Gln(4-aminobutyl)-Asn(4-aminobutyl)-Val-Gly-Ser-Asn-Lys-Gly-Ala-Ile-Ile-Gly-Leu-Met-Val-Gly-Gly-Val-Val-OH Trifluoroacetate