81081-59-6 AT-Cdop Collagen-derived octapeptide L-Lysine, N2-(1-(N-(1-(N-(N-(1-L-lysyl-L-prolyl)glycyl)-L-alpha-glutamyl)-L-prolyl)glycyl)-L-prolyl)- Lys-pro-gly-glu-pro-gly-pro-lys Lysyl-prolyl-glycyl-glutamyl-prolyl-glycyl-prolyl-lysine