Synonyms: (S)-N-Fmoc-alpha-propargyl-Ala-OH; (S)-N-Fmoc-alpha-propargylalanine Molecular Formula: C21H19NO4 Molecular Weight: 349.38 Linear Structural Formula: C21H19NO4 Storage: -20C Application: Alkyne amino acid, more stable for peptide stapling via click chemistry than propargylglycine.