About the reference identity
A dinucleotide rather than a peptide
NAD stands for nicotinamide adenine dinucleotide. Unlike a chain of amino acids, its structure joins two nucleotide units through phosphate groups. The plus sign identifies the oxidized form, conventionally written NAD+; NADH names the reduced form. That notation is a chemical distinction, not a product grade or purity claim.
- Full reference name
- Nicotinamide adenine dinucleotide
- Chemical notation
- NAD+ is the oxidized form; NADH is reduced
Reference identity only; not a test result for current inventory.




