Parathyroid hormone (1-34) (rat) (acetate) is a parathyroid hormone. Parathyroid hormone (1-34) (rat) improves both cortical and cancellous bone structure. Parathyroid hormone (1-34) (rat) can be used for the research of osteoporosis[2].In Vivo: Parathyroid hormone (1-34) (rat) (acetate) (s.c; 40 mg/kg; per day; for 4 weeks) promotes the formation of bone.