L - 色 氨 酸
一、L-氨基酸生產(chǎn)廠家產(chǎn)品介紹
1、產(chǎn)品名稱:L-、又名氨基吲哚丙酸
2、分子式:C11H12N2O2
3、英文名稱:L-Tryptophan
4、CAS NO:73-22-3
5、L-氨基酸生產(chǎn)廠家產(chǎn)品的理化性質(zhì):
本品為白色或類白色至微黃色的結(jié)晶性粉末,無臭或微臭,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;在稀酸或稀堿中溶解,長(zhǎng)時(shí)間光照則著色,與水共熱產(chǎn)生少量吲哚,如在*、硫酸銅存在下加熱,則產(chǎn)生大量吲哚,與酸在暗處加熱較穩(wěn)定,與其它氨基酸、糖類、醛類共存時(shí)極易分解。
二、產(chǎn)品用途
是雜環(huán)氨基酸,是一種重要的人體必須氨基酸,廣泛應(yīng)用于醫(yī)藥和食品領(lǐng)域,其主要用途:
1、用于氨基酸輸液,綜合氨基酸制劑;
2、用于孕婦營(yíng)養(yǎng)補(bǔ)劑和乳幼兒特殊奶粉;
3、用于缺乏癥(糙皮病)治療藥;
4、作為安神藥,調(diào)節(jié)精神節(jié)律、改善睡眠;
5、作為食品和飼料添加劑;
6、用于合成5-羥基色胺(即腦白金)。
三、指標(biāo)
| 項(xiàng) 目 Item | 標(biāo)準(zhǔn) Standard |
| 1 鑒定 Identification | Infrared Absorption |
| 2 外觀 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 鐵鹽 Iron | ≤30ppm |
| 6 硫酸鹽 Sulfate | ≤0.03﹪ |
| 7 重金屬 Heavy metals | ≤15ppm |
| 8 干燥失重 Loss on drying | ≤0. 3﹪ |
| 9 灼燒殘?jiān)?/span> Residue on ignition | ≤0. 10﹪ |
| 10 含量 Assay | 98.5﹪~101.5﹪ |
| 11 有機(jī)物雜質(zhì) 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
| 項(xiàng) 目 Item | 標(biāo)準(zhǔn) Standard |
| 1 鑒定 Identification | Infrared Absorption |
| 2 外觀 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 鐵鹽 Iron | ≤30ppm |
| 6 硫酸鹽 Sulfate | ≤0.03﹪ |
| 7 重金屬 Heavy metals | ≤15ppm |
| 8 干燥失重 Loss on drying | ≤0. 3﹪ |
| 9 灼燒殘?jiān)?/span> Residue on ignition | ≤0. 10﹪ |
| 10 含量 Assay | 98.5﹪~101.5﹪ |
| 11 有機(jī)物雜質(zhì) Organic volatile impurities | Meets the requirement |
| 12 PH | 5.5~7.0 |








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