What is Pyruvic Acid?

Pyruvate or Pyruvic acid is the end product of the anaerobic portion of glycolysis. If the cell has enough oxygen to run aerobic respiration then pyruvate is converted into acetyl-CoA and carbon dioxide byt eh enzyme pyruvate carboxylase. If there isn't enough oxygen in the cell, then pyruvate is converted to lactic acid in order to free up some of the required reactants(NAD+). This allows anaerobic glycolysis to continue.
an ester or salt of pyruvic acid.
Pyruvate is an organic acid, which can be formed from glucose through glycolysis, can form lactic acid, provides energy for cells in the citric acid cycle, and can be converted to fatty acids or carbohydrates.