MF: C11H12N2O2 Molecular Weight: 204.23 Appearance: white to yellow-white crystal or crystalline powder. Odorless or slight odor, slightly bitter taste. M.p. 289 of ° C, the long light colored. By heating water to produce a small amount of indole. If heated in the presence of sodium hydroxide, copper sulfate, and then produce large amounts of indole. Tryptophan and acid is heated in the dark, more stable. With other amino acids, sugars, aldehydes coexist vulnerable to decomposition. If no hydrocarbon coexist with 5mol / L sodium hydroxide were warmed to 125 ° C remained stable. With acid to break down proteins, tryptophan is completely decomposed generate rot black material. Slightly soluble in water (1.1g/100ml, 25 ℃). Uses: Nutritional supplements. Antioxidants. Tryptophan is an important human neurotransmitter -5 - precursor of serotonin, the body of one of the essential amino acids. Storage: Store in a cool, dry place manufacturers of L-tryptophan, L-tryptophan alcohol prices, L-tryptophan purposes, L-tryptophan nutritional supplement, L-tryptophan dosage, L-color ammonia acid wholesale welcome new and old customers to negotiate!