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N-Acetylcarnosine (NAC) (not to be confused with N-Acetylcysteine, which is also abbreviated "NAC") is a naturally occurring [1] compound chemically related to the dipeptide carnosine. The NAC molecular structure is identical to carnosine with the exception that it carries an additional acetyl group.
N-acetylcysteine, also known as Acetylcysteine and NAC, is a medication that is used to treat paracetamol (acetaminophen) overdose and to loosen thick mucus in individuals with chronic bronchopulmonary disorders, such as pneumonia and bronchitis. [9] It has been used to treat lactobezoar in infants.
An acetyl group contains a methyl group (−CH 3) that is single-bonded to a carbonyl (C=O), making it an acyl group. The carbonyl center of an acyl radical has one non-bonded electron with which it forms a chemical bond to the remainder (denoted with the letter R ) of the molecule.
Carnosine (beta-alanyl-L-histidine) is a dipeptide molecule, made up of the amino acids beta-alanine and histidine.It is highly concentrated in muscle and brain tissues. [citation needed] Carnosine was discovered by Russian chemist Vladimir Gulevich.
The molecular formula C 5 H 9 NO 3 S (molar mass: 163.195 g/mol, exact mass: 163.0303 u) may refer to: Acetylcysteine , also known as N -acetylcysteine (NAC) Tiopronin
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