b-NADH-d4 is labelled b-NADH (N201480, Disodium salt). b-NADH is one of the biologically active forms of nicotinic acid. Serves as a coenzyme of hydrogenases and dehydrogenases. NAD usually acts as a hydrogen acceptor, forming NADH which then serves as a hydrogen donor in the respiratory chain. Present in living cells primarily in the reduced form (NADPH) and is involved in synthetic reactions.
ChEBI: A coenzyme found in all living cells; consists of two nucleotides joined through their 5'-phosphate groups, with one nucleotide containing an adenine base and the other containing nicotinamide.