Final answer:
A common brand name for N-Acetyl-L-cysteine is Mucomyst. It is used medically as a mucolytic and for treating acetaminophen overdoses, and biochemically in peptide and protein drugs.
Step-by-step explanation:
The brand name for N-Acetyl-L-cysteine (NAC) can vary, but a common brand name is Mucomyst. NAC is known for its applications in medicine as a mucolytic agent and in cases of acetaminophen overdose. Beyond its clinical uses, NAC is a modified form of the amino acid cysteine, which plays a role in the conjugation of certain aromatic compounds like benzene and is involved in novel pathways for cysteine biosynthesis such as the synthesis of selenocysteine. It has also been explored in the context of peptide and protein drugs, alongside other NCAAs (non-canonical amino acids), to expand the physicochemical properties and improve drug efficacy.