Tyrosine is a non-critical phenylalanine-derived amino acid. Tyrosine’s framework is produced a para-hydroxylated phenyl ring linked to a pentanoic acid group, which can be a 5 member carbon chain with a carboxyl (C(=O)OH) group over the terminal carbon. This pentanoic acid chain is substituted at R2 by having an amino https://revivalschem.com/product/buy-pink-mandala