122551-95-5 3-Hydroxy-L-tyrosine 4-(2,2-dimethylpropanoate) BRN 4236147 L-3-(3-Hydroxy-4-pivaloyloxyphenyl)alanine L-Tyrosine, 3-hydroxy-, 4-(2,2-dimethylpropanoate) NB 355 NB-355