126053-71-2 Ac-Cyclo-S,S-(cys-(N(alpha)-Me)arg-gly-asp-pen)-NH2 L-Valinamide, N-acetyl-L-cysteinyl-N2-methyl-L-arginylglycyl-L-alpha-aspartyl-3-mercapto-, cyclic (1-5)-disulfide N-Acetyl-L-cysteinyl-N2-methyl-L-arginylglycyl-L-alpha-aspartyl-3-mercapto-L-valinamide cyclic (1-5)-disulfide SK&F 106760 SK&F-106760 Skf 106760