134152-14-0 Gln-val-val-cys(npys)-gly-NH2 Glutaminyl-valyl-valyl-S-(3-nitro-2-pyridinesulfenyl)cysteinyl-glycinamide Glycinamide, L-glutaminyl-L-valyl-L-valyl-3-((3-nitro-2-pyridinyl)dithio)-L-alanyl-