Next time when you call a service provider whom you have chosen from JUST DIAL check your balance in your phone.The phone will be ringing & no one answers but when you disconnect the call your balance will be deducted without speaking.
L-TRYPTOPHAN Overview Information. L-tryptophan is an amino acid, a protein building block that can be found in many plant and animal proteins. L-tryptophan is called an âessentialâ amino acid because the body canât make it. It must be acquired from food.
Hmm, after a bit of googeling my pet found this: Decarboxylation of Tryptophan in Diphenylmethane. A suspension of L-tryptophan (250 mg) in warm diphenylmethane (10 g) was gently refluxed in a stream of nitrogen for 5-20 min until no more evolution of carbon dioxide was observed. After cooling, the clear pale yellow reaction mixture was treated with a benzene solution (20 ml) saturated with dry hydrogen chloride.