Tyrosine is usually a non-critical phenylalanine-derived amino acid. Tyrosine’s construction is made a para-hydroxylated phenyl ring linked to a pentanoic acid group, which happens to be a 5 member carbon chain with a carboxyl (C(=O)OH) team to the terminal carbon. This pentanoic acid chain is substituted at R2 using an https://revivalschem.com/product/buy-1p-lsd-100-mcg-blotters/