L-Norleucine327-57-1L-Norvaline6600-40-4L-cystinediethylesterdihydrochloride583-89-1L-2-aminobutyricacid1492-24-6D-2-aminobutyricacid2623-91-8DL-Norleucine616-06-8DL-isoleucine443-79-8DL-Norvaline760-78-1DL-Leucine328-39-2DL-Valine516-06-3DL-Phenylalanine150-30-1DL-Alanine302-72-7DL-Serine302-84-1DL-Tryptophan54-12-6(R)-methyl2-amino-3-chloropropanoate17136-54-8L-tert-Leucinemethylesterhydrochloride63038-27-7)