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Inosinic acid
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A stepwise biochemical pathway diagram showing the biosynthesis of purine nucleotides, with labeled molecular structures and arrows indicating the conversion from ribose 5-phosphate through several intermediates to inosine acid, then branching to form adenylate (AMP) and guanylate (GMP); ATP and other cofactors are shown at key steps.
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Inosinic acid

chemical compound
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Inosinic acid, a compound important in metabolism. It is the ribonucleotide of hypoxanthine and is the first compound formed during the synthesis of purine in organisms. From inosinic acid are derived such important compounds as the purine nucleotides found in nucleic acids and the energy-rich purine nucleotide adenosine triphosphate, in which chemical energy is stored in cells.