Pyr-Ala-Ser-Asn-Cys-Phe-Ala-Ile-Arg-His-Phe-Glu-Asn-Lys-Phe-Ala-Val-Glu-Thr-Leu-Ile-Cys-Phe-Asn-Leu-Phe-Leu-Asn-Ser-Gln-Glu-Lys-His-Tyr-OH Trifluoroacetate (Disulfide bond)