90877-69-3 L-Alanine, N-(N2-(N-(N-(1-oxohexadecyl)-L-seryl)-L-seryl)-L-asparaginyl)-, (6R-(6alpha,7beta(Z)))- N-Palmitoyl-seryl-seryl-asparaginyl-alanine Palmitoyl tetrapeptide Pam-ser-ser-asn-ala