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L-Phenylalanine,N-[N-[N-[N-[N-[N-[N-[N-[N-[N-(N-L-tyrosyl-L-seryl)-L-a-glutamyl]-L-alanyl]-L-threonyl]-L-valyl]-L-alanyl]-L-a-glutamyl]-L-seryl]-L-a-aspartyl]-L-seryl]- related products: