So we combine these two molecules, we cleave a thioester bond, release the coenzyme A, and we form an intermediate known as HMG coenzyme A. Now, HMG stands for the H stands for hydroxy, the M stands for methyl and the G stands for Gluterol. So we form three hydroxy, three methylgutral coenzyme A, or simply HMG coenzyme A. And since we're synthesizing this, the enzyme is known as HMG coenzyme A synthase. So this is once again the rate limiting step of this reaction. And as we'll see in a future lecture, this HMG coenzyme A molecule also appears in the synthesis of cholesterol.