L-Tryptophan
33 Inquiries
73-22-3
Feed Grade
SHANGHAI
20kg/0.12kg Bag
2017-01-20
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Product Description
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Seller Information
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Inquiry History
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Description
L-tryptophan is human body and animal essential restriction amino acids of a, be called after egg ammonia sour, depend on an ammonia sour after of the third amino acids, Be medicine the raw material of the product and food and animal feed the additive have a vast market. invest 120,000,000 dollars, the year produces 500 ton color ammonia sour item already in 2009 Be finished throw produce, the the hurl of the item produce mark Ultrasaurus the company carry out is been thick to process toward the high technology by the simple starch of the development move forward and fill up domestic use ferment a method production L-tryptophan blank.
The item's technique rely on Tienjin science and technology the university and China ferment association, mainly adopt a valley ammonia sour stick rod bacteria mutation the stub ferment a method production L-tryptophan, pass my company business enterprise technique development personnel of unremittingly and hard make he/she produces a sour rate promotes to°from the original 20 gs/L a 40 gs/L above, and through a modern ferment process intelligence control technique, make use of super filter, tiny filter, etc. withdraw L-tryptophan, make its product withdraw accept lead more than 70% and pure degree can reach to more than 98.5%.the item adoption domestic leading level of directly ferment a method patent technique production craft, the the craft reduce pollution of the environment, economize a business enterprise manage polluting expenses, match nation economy energy reduce a row of industry policy, industrial pair outcome with abandon material, directly turn into animal feed and animal feed egg white powder work preface, truely carry out L-tryptophan industrialization produces of circulation the exploitation and cleanness turn production.
Physics and chemistry index sign:chemistry type:C11 H12 N2 O2 molecular weight:204.2 Ls-color ammonia sour content:98.0% thick egg white content(Nx6.25):84.0% the aridity lose heavy: the biggest 1.0% permit heavy(1000 gram/sign to rise):0.35& mdashes;0.45 animal feed formula consideration choice L-tryptophan, can help attain following effect:1: improvement formula of vivid, more by the square the amino acids of the equilibrium animal feed constitutes and satisfy an animal of growth and maintenance demand, raise an animal production function.2: L-tryptophan is digestible 100% amino acids, therefore, is more opposite than egg white raw material, it can morely in the exaltation animal feed can digest L-tryptophan level.3: L-tryptophan to is a pure nourishment animal feed additive, the not poisonous pair remains, can in various animal feed(include the animal feed of exported farming business enterprise) safety use.packing:the each bag is 20 kilograms.
Basic Info-
Product Name:
L-Tryptophan
Other Name:L-Tryptophan;Tryptophan,L-;l-β-3-Indolylalanine;Tryptophane;Tryptophan;L-Tryptophane;1H-Indole-3-propanoic acid,α-amino-,(S)-;L-(-)-Tryptophan;l-α-Aminoindole-3-propionic acid;2-Amino-3-indolylpropanoic acid;(S)-α-Aminoindole-3-propionic acid;(-)-Tryptophan;1H-Indole-3-alanine,(S)-;EH 121;(S)-Tryptophan;(S)-α-Amino-1H-indole-3-propanoic acid;(S)-α-Amino-β-indolepropionic acid;3-Indol-3-ylalanine;L-Alanine,3-(1H-indol-3-yl)-;Lyphan;NSC 13119;(2S)-2-Amino-3-(1H-indol-3-yl)propanoic acid;(S)-2-Amino-3-(1H-indol-3-yl)propanoic acid;(2S)-2-Amino-3-(1H-indol-3-yl)propanoic acid;(2S)-2-Azaniumyl-3-(1H-indol-3-yl)propanoate;6912-86-3;80206-30-0;154635-35-5;2416148-24-6
CAS No.:73-22-3
Molecular Formula:C11H12N2O2
InChIKeys:InChIKey=QIVBCDIJIAJPQS-VIFPVBQESA-N
Molecular Weight:204.22500
Exact Mass:204.23
EC Number:200-795-6
UNII:8DUH1N11BX
NSC Number:757373
DSSTox ID:DTXSID5021419
NCI Thesaurus Code:C29603
Color/Form:Leaflets or plates from dilute alcohol|White to slightly yellowish-white ... crystals or crystalline powder
ATC Code:N - Nervous system
HScode:2933990090
Categories:
Characteristics-
PSA:
79.11000
XLogP3:-1.1
Appearance:L-tryptophan is a white powder with a flat taste. An essential amino acid; occurs in isomeric forms. (NTP, 1992)
Density:1.4±0.1 g/cm3
Melting Point:282 °C
Boiling Point:447.9°C at 760 mmHg
Flash Point:224.7±25.9 °C
Refractive Index:1.698
Water Solubility:H2O: 13.4 mg/mL at 25 °C
Storage Conditions:Protect from light
Vapor Pressure:2.1X10-9 mm Hg at 25 deg C (est)
Toxicity:LD508mmol / kg (rat, intraperitoneal injection). It is safe when used in food (FDA, §172.320, 2000).
Specific rotation:Specific optical rotation: -31.5 deg at 23 °C/D (water, 1%), +2.4 deg at 20 °C/D (hydrochloric acid, 0.5 N); +0.15 deg at 20 °C/D (sodium hydroxide, 2.43% in 0.5 N)
Odor:Odorless
Taste:FLAT TASTE
PH:A 1% solution in water has a pH of 5.5 to 7.
PKA:7.38(at 25 °C)
Dissociation Constants:7.38 (at 25 °C)|pK1 = 2.38 /SRC: carboxylic acid/; pK2 = 9.39 /SRC: primary amine/
Collision Cross Section:154.22 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]|158.58 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|145 Ų [M+H]+ [CCS Type: TW, Method: calibrated with polyalanine]|150.1 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|150.3 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|147.6 Ų [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|147.7 Ų [M+Na]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|142.3 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|142.5 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|151.5 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]|149.1 Ų [M-H]-
Experimental Properties:Decomposes at 289 °C (rapid heating)|Needles from methanol, decomposes at 251 °C /Tryptophan hydrochloride/|UV: 3453 (Sadtler Research Laboratories Spectral Collection) /Tryptophan (DL)/
Air and Water Reactions:Slightly soluble in water.
Reactive Group:Salts, Acidic
Reactivity Profile:Acidic salts, such as L-TRYPTOPHAN, are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.
Hazard IdentificationClassification of the substance or mixture
Not classified.
GHS label elements, including precautionary statements
Pictogram(s) No symbol. Signal word No signal word
Hazard statement(s) none
Precautionary statement(s) Prevention none
Response none
Storage none
Disposal none
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Protect from light
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Seller Information
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Business Type:
Manufactory
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Location:
OVERPASS WEST,RUZHOU CITY,HENAN PROVINCE
Henan Julong Biological Engineering Co., Ltd. is an agricultural products processing enterprise engaged in the production of corn starch and high-tech biological amino acid products. On January 13, 2015, the company was listed in the National Equities Exchange and Quotations (commonly known as “new three board”). It is a new milestone in the history of the development of the company, which will play a significant role in promoting the development of new products and the expansion of enterprise scale and the enhancement of product quality and economic benefit. At the same time, it will also inject new vitality into Ruzhou’s economy development as well as the industrial structural readjustment. Julong was founded in April 1997, located in the Overpass west, Ruzhou City, Henan Province, China, covering an area of more than 300 thousand square metre, has more than 1000 employees, with a registered capital of 105.5 million RMB. As the largest L-Tryptophan production base in China, annual production value is nearly 1 billion RMB, it is equipped with the “Provincial Enterprise Technology Center” and “Tryptophan Engineering Technology Research Center of Henan Province”. The company possesses 12 factories: Tryptophan plant, Threonine plant, Glucose plant, Corn starch plant, Modified starch plant, Corn oil plant, Sewage treatment plant, Power plant etc.; The main products include: L-Tryptophan, L-Threonine and other high value-added Amino acid, Corn starch, Crystal glucose, etc. In recent years, by means of analysing the market situation at home and abroad, centered around the goal of the strategic transformation and upgrading of enterprises, the company actively adjusted the industrial structure, and determined to take the deep processing of corn starch and the production of high-tech amino acid products as the direction for development; under the help and support of Amino Acid Center of China Fermentation Industry Association and Tianjin University of Science and Technology, the company relied on the R&D Center and organized scientific research personnel to tackle the key problems existing in the L-tryptophan production process. Its production technology, which has reached the leading level at home and abroad, identified by the National Ministry of Science and Technology as the key new product. The company has built many L-Tryptophan production lines, with an annual output of more than 10,000 tons, accounting for about 60% of the market share; the products are well sold to the United States, Canada, Spain, Belgium, France, Britain, Germany, more than 20 countries and regions. The export volume reached more than 35 million USD in 2014 and the number will amount to more than 60 million USD in 2015, becoming the power for sustainable development and presenting a favorable prospect.Julong has been successively awarded by the Country as the “Investment And Equity Participation Enterprises For National Agricultural Comprehensive Development”; “Key Industrialization Projects For National Comprehensive Agricultural Development”; “Quality Management Standard Units”; “Leading Enterprises For National Agricultural Industrialization”; “Advanced Enterprises For National Employment”; “National Excellent Welfare Enterprises” and other honors.
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Inquiry History33 Inquiries
Country Product Purchase Quantity Date Posted 
India
L-Tryptophan (Vegan Only)
50.00 KG Mar 24, 2026
India
L-Tryptophan powder
25.00 KG Feb 13, 2025
India
L-Tryptophan powder
1.00 MT Sep 27, 2023
India
L Tryptophan
25.00 KG Oct 30, 2025 
United States
L-Tryptophan
1 MT Apr 16, 2025 
Egypt
L-Tryptophan
1000 KG Jun 27, 2024
India
L- Tryptophan 98.5%
5.00 MT Oct 16, 2025
Egypt
L-Tryptophan powder
100.00 KG Oct 11, 2025 
Greece
TRYPTOPHAN (Trp, W)
300.00 KG Sep 25, 2025
India
L Tyrptophan
1.00 KG Apr 25, 2025 
United Kingdom
L-Tryptophan powder
15.00 MT Nov 22, 2024
United States
L-Tryptophan Powder
10 MT Oct 18, 2024 
Russia
L-Tryptophan
25 KG Sep 24, 2024 
Spain
Tryptophan, feed additives
25 MT Sep 25, 2023
India
L-Tryptophan powder
2000 KG Aug 14, 2023 
Slovenia
L-TRYPTOPHAN
400 G Jan 9, 2026
India
L-Tryptophan
1 MT Apr 23, 2025
United Kingdom
L-Tryptophan powder
1.00 20' Fcl Apr 2, 2025
India
Sodium Hydroxide
100.00 KG Feb 13, 2025
India
Glycine
1.00 MT Sep 26, 2023 Post an enquiry for this product
