how long does generic viagra last A method to prevent the degradation of oxaloacetic acid comprising creating an anhydrous enol oxaloacetate, then isolating the anhydrous enol oxaloacetate with a water content less than 2 from moisture with a sealed encapsulation, wherein the step of creating the anhydrous enol oxaloacetate comprises subjecting oxaloacetate to a wash with a hydrophobic solvent
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how long does generic viagra last A method to prevent the degradation of oxaloacetic acid comprising creating an anhydrous enol oxaloacetate, then isolating the anhydrous enol oxaloacetate with a water content less than 2 from moisture with a sealed encapsulation, wherein the step of creating the anhydrous enol oxaloacetate comprises subjecting oxaloacetate to a wash with a hydrophobic solvent