102334-63-4 Cyclo(H-glu-phe-gly-leu-met-NH(CH2)3-NH-)-substance P SP C(Gppglmn) Substance P, cyclo(H-glu-phe-phe-gly-leu-met-NH(CH2)3-NH-) Substance P, cyclo(H-glutamyl-phenylalanyl-phenylalanyl-glycyl-leucyl-methionine propylene diamine)