2. Item Specifications Results Appearance White powder Specific Rotation -50.9° Melting Point ℃ 105.2℃ Water(KF) 0.2% Purity(HPLC) 99.8% Conclusion The product conforms to the standard. 3. Boc-D-tyrosine methyl ester CAS No.76757-90-9 Density 1.169 g/cm3 Formula C15H21NO5 Boiling Point 452.7 °C at 760 mmHg Molecular Weight 295.33 Flash Point 227.6 °C Synonyms D-N-tert-Butoxycarbonyltyrosinemethyl ester;Methyl (R)-2-[(tert-Butoxycarbonyl)amino]-3-(4-hydroxyphenyl)propionate;N-BOC-D-tyrosine methyl ester;N-tert-Butoxycarbonyl-D-tyrosine methyl ester;D-tyrosine, N-[(1,1-dimethylethoxy)carbonyl]-, methyl ester;Methyl N-(tert-butoxycarbonyl)-D-tyrosinate;BOC-D-TYR-OME;Boc-D-tyrosine methyl ester;