| AK Scientific 6376AH | 1g | $77 | Boc-L-2-aminobutanoicacid4-nitrophenylester |  | 
                        
                            | Biosynth Carbosynth FB47888 | 5G | $107.2 | Boc-L-alpha-aminobutyric acid 4-nitrophenyl ester |  | 
                        
                            | Biosynth Carbosynth FB47888 | 2g | $67 | Boc-L-alpha-aminobutyric acid 4-nitrophenyl ester |  | 
                        
                            | Chem-Impex 03941 | 1G | $24.11 | Boc-L-α-aminobutyricacid4-nitrophenylester,≥97%(HPLC) |  | 
                        
                            | Chem-Impex 03941 | 5G | $108.56 | Boc-L-α-aminobutyricacid4-nitrophenylester,≥97%(HPLC) |  | 
                        
                            | Usbiological 264848 | 2g | $202 | Boc-L-alpha-aminobutyric acid 4-nitrophenyl ester |  |