CAS No 122071-54-9 , L-Leucinamide,L-leucyl-L-seryl-L-a-aspartyl-L-a-aspartyl-L-methionyl-L-prolyl-L-alanyl-L-threonyl-L-prolyl-L-alanyl-L-a-aspartyl-L-glutaminyl-L-a-glutamyl-L-methionyl-L-tyrosyl-L-arginyl-L-glutaminyl-L-a-aspartyl-L-prolyl-L-a-glutamyl-L-glutaminyl-L-isoleucyl-L-a-aspartyl-L-seryl-L-arginyl-L-threonyl-L-lysyl-L-tyrosyl-L-phenylalanyl-L-seryl-L-prolyl-L-arginyl-