c-RAF [pS621] PAb hu, (ms, rt) ; Unconjugated Polyclonal antibody specific to Human, (Mouse, Rat) c-Raf [pS621]. This antibody is validated for use in Western Blot. Anti-c-Raf [pS621] recognizes the expressed product of the RAF1 gene. Catalog number 44504G is same antibody as former catalog number 44504. 44504G contains 50% glycerol, which improves the stability and longevity of this antibody.