Tyrosine is actually a non-critical phenylalanine-derived amino acid. Tyrosine’s structure is built a para-hydroxylated phenyl ring connected to a pentanoic acid group, that is a 5 member carbon chain by using a carboxyl (C(=O)OH) team over the terminal carbon. This pentanoic acid chain is substituted at R2 with an amino https://revivalschem.com/product/buy-al-lad-150-mcg-blotters/