Fmoc-L-glutamic acid 5-tert-butyl ester [ 71989-18-9 ]

Purity: 98%, melting point: 83-90 ° C, white crystalline or crystalloid powder, Soluble in ethyl acetate, acetic acid and DMF, insoluble in petroleum ether, Mp for 88-90 ℃; [alpha] than spin photometric 20D - 13.5 ° - 15.5 ° (0.5-2 mg/ml, DMF), [alpha] 20D + 8 ° (0.5-2mg/ml, ethyl acetate), [alpha] 20D - 4 ° (0.5-2 mg/ml, 80% acetic acid). Used for amino acid protects monomer, used for peptide synthesis.