品 名：L-色氨酸
英文名：L-Tryptophan
分子式：C11H12N2O2
分子量：204.23
法定编号（CAS）：73-22-3
性 状：L-色氨酸为白色至黄白色晶体或结晶性粉末。无臭或微臭，稍有苦味。熔点289℃（分解）。长时间光照则着色。与水共热产生少量吲哚。如在氢氧化钠、硫酸铜存在下加热，则产生多量吲哚。色氨酸与酸在暗处加热，较稳定。与其他氨基酸、糖类、醛类共存时极易分解。如无烃类共存，与5mol/L氢氧化钠共热至125℃仍稳定。用酸分解蛋白质时，色氨酸完全分解，生成腐黑物。略溶于水（1.1g/100ml，25℃），溶于热水、热乙醇、稀盐酸和碱性氢氧化物溶液。
用 途：营养增补剂。抗氧化剂。L-色氨酸是人体重要的神经递质------5-羟色胺酸的前体，是人体的必需氨基酸之一。
包 装：25kg/桶
质量标准：USP24、AJI92，FCCIV
L-Tryptophan
Molecular Formula: C11H12N2O2
Molecular Weight: 204.23
CAS：72-22-3
DESCRIPTION: White to yellow white crystal or crystalline powder. Odorless or slight odor. Slightly bitter taste. Melting point is 289 ℃ (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 125 ℃ if no hydrocarbon coexistence. Decomposed protein by acid, the tryptophan completely decomposed, producing rot black material. Slightly soluble in water (1.1g/100ml, 25 ℃), 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: 25kg / barrel
Quality standard: USP24, AJI92, FCCIV