CAS No 475221-20-6 , L-Serinamide,N2-acetyl-L-arginyl-L-isoleucyl-L-tyrosyl-L-lysylglycyl-L-valyl-L-isoleucyl-L-glutaminyl-L-alanyl-L-isoleucyl-L-glutaminyl-L-lysyl-L-seryl-L-a-aspartyl-L-a-glutamylglycyl-L-histidyl-L-prolyl-L-phenylalanyl-L-arginyl-L-alanyl-L-tyrosyl-L-leucyl-L-a-glutamyl-L-seryl-L-a-glutamyl-L-valyl-L-alanyl-L-isoleucyl-L-seryl-L-a-glutamyl-L-a-glutamyl-L-leucyl-L-valyl-L-glutaminyl-L-lysyl-L-tyrosyl-L-seryl-L-asparaginyl-