DL-Tryptophan,N-(1-oxo-9-octadecenyl)-, ethyl ester, (Z)-; Tryptophan,N-[(9Z)-1-oxo-9-octadecenyl]-, ethyl ester (9CI); Tryptophan,N-(1-oxo-9-octadecenyl)-, ethyl ester, (Z)-
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