A-nicotinamide adenine dinucleotide*reduced form A-NICOTINAMIDE ADENINE DINUCLEOTIDE*REDU CED FORM DI Adenosine 5-(trihydrogen diphosphate), P?5-ester with 1,4-dihydro-1-.alpha.-D-ribofuranosyl-3-pyridinecarboxamide, disodium salt α-Dihydrodiphosphopyridine nucleotide, α-Dihydronicotinamide adenine dinucleotide, α-DPNH, α-NADH ALPHA-DIHYDRODIPHOSPHOPYRIDINE NUCLEOTIDE DISODIUM SALT ALPHA-DIHYDRONICOTINAMIDE ADENINE DINUCLEOTIDE DISODIUM SALT ALPHA-DPNH DISODIUM SALT ALPHA-NICOTINAMIDE ADENINE DINUCLEOTIDE, REDUCED FORM DISODIUM SALT