L-Arginine,L-a-glutamyl-L-tryptophyl-L-a-aspartyl-L-seryl-L-valyl-L-tyrosyl-L-tryptophyl-L-glutaminyl-L-prolyl-L-tyrosyl-L-seryl-L-valyl-L-glutaminyl-L-threonyl-L-leucyl-L-leucyl-
CAS No. 268229-71-6