L - 色 氨 酸
一、L-*氨基酸生产厂家产品介绍
1、产品名称:L-*、又名氨基吲哚丙酸
2、分子式:C11H12N2O2
3、英文名称:L-Tryptophan
4、CAS NO:73-22-3
5、L-*氨基酸生产厂家产品的理化性质:
本品为白色或类白色至微黄色的结晶性粉末,无臭或微臭,L-型稍有苦味、DL-、D-型味稍甜。289°C分解,在水中微溶,不溶于乙醇;在稀酸或稀碱中溶解,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,则产生大量吲哚,与酸在暗处加热较稳定,与其它氨基酸、糖类、醛类共存时极易分解。
二、产品用途
*是杂环氨基酸,是一种重要的人体必须氨基酸,广泛应用于医药和食品领域,其主要用途:
1、用于氨基酸输液,综合氨基酸制剂;
2、用于孕妇营养补剂和乳幼儿特殊奶粉;
3、用于*缺乏症(糙皮病)治疗药;
4、作为安神药,调节精神节律、改善睡眠;
5、作为食品和饲料添加剂;
6、用于合成5-羟基色胺(即脑白金)。
三、指标
项 目 Item | 标准 Standard |
1 鉴定 Identification | Infrared Absorption |
2 外观 Description | White to slightly yellowish-white crystals or crystalline powder |
3 比旋光度[a]25D Specific rotation | -29.4°~-32.8° |
4 氯化物 Chloride | ≤0.05﹪ |
5 铁盐 Iron | ≤30ppm |
6 硫酸盐 Sulfate | ≤0.03﹪ |
7 重金属 Heavy metals | ≤15ppm |
8 干燥失重 Loss on drying | ≤0. 3﹪ |
9 灼烧残渣 Residue on ignition | ≤0. 10﹪ |
10 含量 Assay | 98.5﹪~101.5﹪ |
11 有机物杂质 Organic volatile impurities | Meets the requirement |
12 PH | 5.5~7.0 |
L-TRYPTOPHAN
1. Description
(1) Product Name: L-tryptophan, also called as amino indopropionic acid
(2) Molecular Formula: C11H12N2O2
(3) English Name: Tryptophan
(4)CAS NO:73-22-3
(5) Physical and Chemical Properties:
They are white or offwhite to yellowish crystalline powder, odorless or slight odor. L-tryptophan has slight bitterness, while DL-tryptophan and D-tryptophan have slight sweet taste. They will decompose at the temperature of 289°C, slight soluble in the water and insoluble in alcohol. They can dissolve in the dilute acid or dilute alkali, and colorate if being irradiated for a long time, to produce a small quantity of indole when heated together with water. A large amount of indole will be produced if heated together with sodium hydroxide or cupric sulfate; They are stable if heated together with acid in dark place, however, very easy to decompose if together with other amino acid, saccharide or aldehyde.
2. Uses
Tryptophan is a kind of heterocyclic amino acid, important and necessary for human body, widely used in pharmaceutical and food field, the main uses include:
(1) used in the amino acid transfusion, composite amino acid preparation;
(2) used in nutrient tonic for pregnant women and special milk powder for infants.
(3) used as drug to treat nicotinic acid deficiency disease (pellagra);
(4) used as sedative drug to regulate mental rhythm and perfect sleep quality;
(5) used as food and feed additive;
(6) used to synthesize 5-hydroxytryptamine(MELATONIN).
3、Index
项 目 Item | 标准 Standard |
1 鉴定 Identification | Infrared Absorption |
2 外观 Description | White to slightly yellowish-white crystals or crystalline powder |
3 比旋光度[a]25D Specific rotation | -29.4°~-32.8° |
4 氯化物 Chloride | ≤0.05﹪ |
5 铁盐 Iron | ≤30ppm |
6 硫酸盐 Sulfate | ≤0.03﹪ |
7 重金属 Heavy metals | ≤15ppm |
8 干燥失重 Loss on drying | ≤0. 3﹪ |
9 灼烧残渣 Residue on ignition | ≤0. 10﹪ |
10 含量 Assay | 98.5﹪~101.5﹪ |
11 有机物杂质 Organic volatile impurities | Meets the requirement |
12 PH | 5.5~7.0 |
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