Description

L-Tryptophan
Molecular Formula: C*1H*2N2O2
Molecular Weight: **4.*3
CAS：******3
Description:
White to yellow white crystal or crystalline powder. Odorless or slight odor. Slightly bitter taste. Melting point is **9 ℃ (decomposition). Colored in long light. Heated with water produces a small amount of indole. Heating in the presence of sodium hydroxide, copper sulphate produced indole.  Heated tryptophan and acid in the dark, which more stable. Easily decompose with other amino acids, sugars, aldehydes. It is stable which heated with 5mol / L sodium hydroxide to **5 ℃ if no hydrocarbon coexistence. Decomposed protein by acid, the tryptophan completely decomposed, producing rot black material. Slightly soluble in water (1.1g/**0ml, *5 ℃), soluble in hot water, hot ethanol, dilute hydrochloric acid and alkaline hydroxide solution.
Application: Nutritional supplements. Antioxidants. L-tryptophan is an important neurotransmitter in the human body
5 - hydroxytryptophan precursor, is one of the essential amino acids the human body.
Packing: *5kg / barrel

Quality standard: USP*4, AJI*2, FCCIV