Acetylcholine is an ester of acetic acid and choline with chemical formula CH 3 CO O CH 2 CH 2 N + (CH 3) 3. This structure is reflected in the systematic name, 2-acetoxy-N,N,N-trimethylethanaminium. Acetylcholine (ACh) was first identified in 1914 by Henry Hallett Dale for its actions on heart tissue.
1 Place pork tenderloin in roasting pan. 2  Roast for 30 minutes. 3  Turn the pork over and roast for another 25 minutes. 4  The pork tenderloin is ready when the internal temperature reaches 145 degrees Fahrenheit (63 degrees Celsius).
Sear all sides of the loin, except for the cut ends, for 2 to 3 minutes each, creating a dark brown crust. Add in any vegetables and 2 cups of stock, white wine, or water, then transfer the pan to a center rack in the oven. Cook for 40 minutes per pound, basting the pork roast every 20 minutes. Remove from the oven and let the roast rest for 15 minutes before serving.