(S)-N-Acetyltryptophan 1218-34-4 AC-Try Acetyl tryptophan Acetyl-L-trp Acetyl-L-tryptophan Acetyltryptophan EINECS 214-935-9 L-Tryptophan, N-acetyl- N-Acetyl-L-tryptophan N-Acetyltryptophan NSC 90726 TRYPTOPHAN, N-ACETYL-, L-