L-Leucine,N-[N-[N-[N-[N-[N-[N-[1-[N-[N-(N-L-histidyl-L-leucyl)-L-leucyl]-L-phenylalanyl]-L-prolyl]-L-isoleucyl]-L-isoleucyl]-L-isoleucyl]-L-alanyl]-L-alanyl]-L-seryl]-
CAS No. 136685-08-0