TIANFU-CHEM L-Glutamic acid, L-seryl-L-leucyl-L-seryl-L-leucyl-L-seryl-L-threonyl-L-asparaginyl-L-leucyl-L- glutaminyl-L-a-glutamyl-L-arginyl-L-leucyl-L-arginyl-L-arginyl-L-lysyl-