90685-16-8 Gly-lys-arg-oxytocin OT-Gkr Oxytocin dodecapeptide Oxytocin, 9a-glycine-9b-L-lysine-9c-L-arginine- Oxytocin, gly-lys-arg- Oxytocin, glycyl-lysyl-arginine- Precursor-oxytocin Pro-oxytocin