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BGC » Chemicals A-Z » L-Tryptophan
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L-Tryptophan

BGC Id:650866173730
CAS No:73-22-3
Synonyms:eh121 ; eltrip ; trp ; lyphan ; h-trp-oh ; l-trp ; l-ttp ; tryptan ; trofan ; eh 121
Molecular Formula:C11H12N2O2
Molecular Weight:204.22518
EINECS:200-795-6
Structural Formula
Listed are 25 international and reliable suppliers for L-Tryptophan. They are coming from 4 countries around the world. These vendors belong to 25 different business types like 'Trading company' and 'Bulk and laboratory supplier'
Please contact all the below listed distributors/manufacturers for L-Tryptophan and ask for prices, package standards and transport possibilities. Our registered distributors will help you to get all necessary information and product specifications.


supplier ww
registered suppliers of L-Tryptophan worldwide

The most competitive supplier in 2026

The following 25 notable providers have been checked and can be recommended.
Chemical-Suppliers
Wuhan PharmChem LTD.
EINECS :200-795-6 Molecular formula :C11H12N2O2
Chemical-Suppliers
Simagchem
Appearance & Physical State White crystals or powder Melting Point 289-290 °C (dec.)(lit.) Water Solubility 11.4 g/L
Chemical-Suppliers
Sancai Industry
Assay More Than 98.0% Specific rotation [α ]D20° +14.5°~+16.0° PH 5.5~6.5 State of solution(Transmittance) More Than 98.0%; Chloride content Not More Than 0.02% Sulfate (SO4) Not More Than 0.02% Ammonium (NH4) Not More Than 0.02% Other amino acids Not More Than 0.5% Loss on drying Not More Than 0.2% Residue on ignition Not More Than 0.1% Iron(Fe) Not More Than 0.001% Heavy metals Not More T

Chemical-Suppliers
Win-Win Chemical
Purity : 0.98 Chemical Formula : C11H12N2O2 Molecular Weight (g/mol) : 204.23 Delivery time : 5Day(s) Application : For R&D Appearance : White to yellow-white powder
Chemical-Suppliers
Molekula
Molecular Weight : 204.23 Formula : C11H12N2O2 HS Code : 2933998090 Categories : Amino Acids,Biochemicals
Chemical-Suppliers
Iris Biotech
Mol Weight (Unit) : 204,23 g/mol Formula : C11H12N2O2
Chemical-Suppliers
Leap Chem
Molecular Formula: C11H12N2O2 Molecular Weight: 204.23 Hazard Symbols: Xi WGKGermany: 2 HS Code: 29339990

The last intensive check and update was carried out on 2026/08/19.

Identify

Synonyms:
eh121 ; eltrip ; trp ; lyphan ; h-trp-oh ; l-trp ; l-ttp ; tryptan ; trofan ; eh 121
CAS:
73-22-3
EINECS:
200-795-6
Molecular Formula:
C11H12N2O2
MDL:
MFCD00064340
SMILES:
C1=CC=C2C(=C1)C=CC=C2NC(=O)CCCl

Properties

Molecular Weight:
204.22518 g·mol−1
Density:
1.34
Melting point:
289-290 °C (dec.)(lit.)
Solubility:
20% NH3: 0.1 g/mL at 20 °C, clear, colorless
download Download Molfile

Suppliers

Beckmann-Kenko GmbH

Company type: Internat. trading company
Our company BECKMANN-KENKO GmbH is a joint venture between Beckmann Chemikalien KG in Germany founded in 1977 and Kenko Corporation in Japan founded in 1965. We are a young and ambitious import/export company. Acting independently and on behalf of a selected number of internationally renowned principals, we resource and market speciality chemicals. Additionally 4,4'-Oxydianiline is supplied by us. Located in Bassum, Germany we also have our own office in Shanghai, China and warehouse facilities of 3000 square meters within t ...
Country: Germany   Phone: +49 4241 9308-0   Telefax: +49 4241 9308-30

Purestar Chem Enterprise Co., Ltd.

Company type: Supplier
Country: P.R.China
Phone: +86-572-2157374
Telefax: +86-572-2146389
Purestar Chem Enterprise Co., Ltd. (also known as Huzhou Purestar Biochem Co., Ltd.) is a professional supplier of high-quality botanical extracts and ingredients for the dietary supplement, functional food, and nutrition industries. We sell Esmeprazole magnesium 3-hydrate as well. Located in Huzhou, Zhejiang Province, China, we have been serving customers worldwide since 2005. Our product portfolio focuses on plant extracts, mushroom extracts, nutritional ingredients, natural active compounds, amino acids, vitamins, and o ...

Changzhou Union Chemicals Co.,Ltd.

Changzhou Union Chemicals Co.,Ltd. is a comprehensive company which is specialized in marketing and manufacturing of new moleculars, advanced intermediates & other fine chemicals - Pharmaceutical intermediates ; Amino acids & derivatives; Chiral products; ect .... 3,5-Difluoromandelic acid will be also provided by us. It involves one subsidiary company and several joint ventures in china. Union Chem, has professional & innovative teams to provide high quality products and services to our customers worldwide, we strict to "Qual ...
Company type: International trading company
Country: P.R.China
Phone: +86 519 8680 2352
Telefax: +86 519 8639 6223

Wuhan PharmChem Co., LTD.

Company type: Import & export company
Wuhan PharmChem CO., LTD. We supply our chemical product 2,6-di-tert-Butyl-4-methylphenol. has been a premier chemical supplier distributing high-quality chemicals to businesses in various industries for the whole world. At Wuhan PharmChem, we are committed to excellence.From manufacturing to packaging and delivery, we provide quality, reliability and the highest degree of customer service.Our scope of service is organized/structured around the unique needs of each client.Our mission is establish long-term relationships with our clients b ...
Country: P.R.China   Phone: +86 27 85835203   Telefax: +86 27 85835203

Simagchem Corporation

Company type: Bulk chemical producer
Country: P.R.China
Phone: +86 592 2680 277
Telefax: +86 592 2680 237
Your partner in China for chemicals business. Expertize in supplies and sources of fine, specialty, pharmaceutical chemicals and intermediates. WE offer high quality products and JIT services with instant market intelligence in China, custom synthesis in our 3 production sites, famous principals as Brenntag, Univar,S inopec, Grace, Petrobras, DKSH, Formitex, Evonik, Merck, TCI, Sanofi, Chemo with creditable reputation and business cooperation. We sell (+/-)-3-Hydroxy-gamma-butyrolactone as well.

Sancai Industry Co.,Ltd.

Sancai Industry is involved in supplying of fine chemicals, food and nutrition,personal care, medical intermediate etc, We can also customize chemicals for our customers.Taking advantage of innovative technology and excellent talents and through over 15 years of development,We have stabled good relation with clients in and abroad. Additionally 3-Mercaptopropionic acid is supplied by us. In order to be competitive on the market. We have established the global marketing network, independent research center, testing center, and key ...
Company type: Leading producer
Country: P.R.China
Phone: +86-531-88913079
Telefax: +86-531-88913079

Shandong Lanhai Industry Co.,Ltd.

Company type: Producer
Shandong Lanhai Industry Co., Ltd established in 2015. The headquartered located in the beautiful Spring city Jinan. The company's factory is located in Coal Chemical Industrial Park, Juye County, Heze City Shandong province.Lanhai Industry is a high-tech enterprise in Shandong Province. The company integrates science, industry and trade, specializing in the research, development, production and operation of fluorosilicone products, OLED intermediates and agricultural fertili ...
Country: P.R.China   Phone: +86-15953182965  

H&Z Industry Co.,Ltd

Country: P.R.China
Phone: +86 13583185792
Telefax: +86 531 88905468
H&Z Industry Co.,Ltd is a large reliable and professional manufacturer of chemical materials and pharmaceutical intermediate. H&Z Industry Co.,Ltd also offers 4,9-Dibromo-2,7-bis(2-octyldodecyl)benzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetraone. With about 10 years experiences in this field, now we are a capable provider of customized product, and we can provide gram level to ton level of products. What we can give to customers: thoughtful services, high-quality products, competitive price, Looking forward building long-term cooperative relationships with our business partners.

Shandong Minglang Chemical Co., Ltd

Minglang Chemical is owned by Minglang Group,is a large manufacturer of fine chemicals and cosmetic materials that integrates R&D,production and sales together.It is located in the east of the Nanwang Economic Development District in Linzi,and the west of it is Qilu Petroleum Chemical Group,the east of it is Zijiang Road and the transportation is convenient.The enterprise covers an area of 9,000 square meters and the building area can be 3,200 square meters. We are supplier of Phytic acid. In recent years,t ...
Company type: Producer
Country: P.R.China
Phone: +86-13220566916
Telefax: +86 531 58990167

Hangzhou Meite Industry Co., Ltd (Hangzhou Meite Chemical Co., Ltd)

Company type: Producer
Hangzhou Meite Industry Co., Ltd. is an international high-tech enterprise founded in 1998, specialized in R&D and manufacture on intermediates, medicines, agrochemical, dyestuff, flavor, fragrance, cosmetic, natural extracts series products. Flupentixol dihydrochloride will be also provided by us. We have an efficient R&D centre, get a strong technical support from Zhejiang University of Technology and Institute of Chemistry, Wuhan Branch, Chinese Academy of Sciences. Our factory Hangzhou Meite Chemical Co.,Ltd. is located in Fi ...
Country: P.R.China   Phone: +86 571 88026825   Telefax: +86 571 88282557

Zehao Industry Co., Ltd.

Country: P.R.China
Phone: +86-531-88909322
Telefax: +86-531-88909322
The Shepherd Chemical Company was founded in Norwood, Ohio, in 1916. We are seller of 3-Bromo-2-hydroxy-5-methylpyridine. We are a fourth-generation company and a custom manufacturer of Inorganic Metal Salts and Organic Metal Compounds to the global marketplace. Our long-standing success is built upon technical expertise, supplier reliability, and customer relationships. Our goal is to supply the marketplace with high quality metal compounds as standard or customized products. Our capabilities are comprised of our manufacturi ...

Hangzhou Zhongqi Chem Co., Ltd

Located in Hangzhou National Hi-Tech Industrial Development Zone, zhongqichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. Hangzhou Zhongqi Chem Co., Ltd is a seller of 2-Benzylacrylic acid. Our advantage : 1.We do not simply provide chemicals , we provide chemical solutions and expertise; 2.We have trained, highly effective team to solve the problem at the first time; 3.Our QMS (quality management system) ensures the product quality strictly; 4.Strong research and deve ...
Company type: Leading producer
Country: P.R.China
Phone: +86-571-86976032
Telefax: +86-571-86972162

Lori Industry Co., Ltd

Company type: Bulk chemical producer
Lori industry Co., Ltd was established in 2002 years. It is a large-scale manufacturer integrating R&D, produce and sales. Our products mainly cover fine chemicals, organic intermediates, biological buffers, agricultural fertilizers and other chemicals . Among them, the sales proportion of organic chemicals and agricultural fertilizers is at the forefront of the domestic market. We are seller of Benzylpenicillin potassium. From 2013 to 2022 years, through cooperation with foreign trade companies, customers visitation, ...
Country: P.R.China   Phone: +86-13011713125   Telefax: +86-13011713125

Finetech Industry Limited

Company type: Producer
Country: P.R.China
Phone: +86-27-8746 5837
Telefax: +86-27-8777 2287
Finetech Industry Limited is a company in England,which specializing in developing, manufacturing and marketing fine organic compounds and intermediates for the pharmaceutical industry. We supply our chemical product Capsicum oleoresin. Most of our products were exported to the North America, Europe and Oceania. Our factory is in China,we supply Fluorochemicals, Pyrimidines, Pyridines, Amines, Nitriles, Carboxylic Acids or Ester, Phenols or Alcohols, Aldehydes, Piperidines, Piperazines, Pyrazines, Boric Acids, Amino Acids, ...

Capot Chemical Co., Ltd.

Welcome to Capotchem • Established in 1996 ,Capot Chemical Co.,Ltd is a fine organics manufacturing facility which located in Hangzhou,P.R.China. We produce a wide range of organics, especially fluorine, boronic acids, amino acids, unnatural amino acids, peptide, cross linkers, organocatalysts, chiral building blocks, heterocyclic compounds and other active pharmaceutical ingredients compounds. We supply our chemical product Cytidine-5'-monophosphoric acid. We are certified to the ISO 9001:2000 Standards, have a safety management syste ...
Company type: Leading producer
Country: P.R.China
Phone: +86-571-85586718
Telefax: +86-571-85864795

Hangzhou Lingrui Chemical Co., Ltd.

Company type: Producer
Established in 2010, located in Hangzhou Qinglan science park, lingruichem is a technical company mainly focus on the Custom synthesis, manufacturing, sales of chemicals to various industries. In our R&D centre, we have a staff of skilled and experienced research chemists. This has enabled us to meet the special requirements of our customers and it has enabled us to provide quality products at competitive prices. We provide 4-Fluorobenzenesulfinic acid sodium salt as well. Lingrui’s credo is committed to your reliable business partne ...
Country: P.R.China   Phone: +86-571-88092529   Telefax: +86-571-87334908

Carbone Scientific Co., Ltd.

Company type: Supplier
Country: U.K.
Phone: +44 (0)203 769 4441 ext 1
Telefax: +44 (0)203 769 4441 ext 2
Carbone scientific is located at London, UK. We are mainly engaged in the marketing development, R&D, technical support and service. Carbone scientific provides fine chemicals, pharmaceutical intermediates, and active pharmaceutical ingredients to the global marketplaces. Our aim is to make those most popular products available to these pharmaceutical and biotech companies, research organizations and university labs worldwide. We are seller of 1-N-Boc-4-Cyanopiperidine. Our online catalogue has already listed over 50 ...

Win-Win Chemical Co., Limited

Established in 2007, Win-Win chemical CO., Ltd was set up by Professor of Zhejiang University, Wenzhou University and Shanghai Science and Technology University which is located in Longwan Industry District, Wenzhou, China. We have high-tech research capability, and advanced production and inspecting equipment. We are especially engaged in customize production of aromatic fluoride compounds, chiral building blocks, and heterocyclic compounds. We can provide our customers with ...
Company type: Bulk chemical supplier
Country: P.R.China
Phone: +86-577-64498589
Telefax: +86-577-56994596

Xingrui Industry Co., Limited

Company type: Leading producer
Xingrui Industry CO., LTD. is a professional manufacturing enterprise integrating R&D, production and sales. Xingrui Industry Co., Limited also offers Triphenylmethyl chloride. The products involved fine chemicals, pharmaceutical intermediates, dye intermediates, cosmetic raw materials and so on. The company is ranked among the outstanding producers in the fine chemical industry. Xingrui Industry always strive to be the most reliable partner of our customers, and strive to build a customer-trusted, socially respected, world-class fine chemi ...
Country: P.R.China   Phone: +86-531-88980365   Telefax: +86-531-88980365

AK Scientific, Inc.

Company type: Supplier
Country: USA
Phone: +1 (510) 429-8835
Telefax: +1 (510) 429-8836
AK Scientific provides fine chemicals and advanced intermediates to our customers worldwide. Currently, we have over 16.000 in stock, ready to ship products, at our California warehouse and this number is increasing weekly. All these products are stocked in multiple, convenient, sizes to fit your specific needs. We supply our chemical product 4-Iodo-3-methylaniline. Purchases are shipped on the same day your order is placed (before 4PM, Pacific Time) to ensure on-time delivery. AK Scientific products can be searched by Name (or ...

Molekula GmbH

Molekula supplies speciality chemicals and biochemicals to the fine chemical, research and diagnostic community. Our core competence is in the area of heterocycles for combinatorial chemistry, small building blocks for discovery and large scale synthesis for pilot teams and production. In the field of biochemicals, Molekula is a major supplier of key reabents used in the area of diagnostics, microbiology and biotechnology.
Company type: Trading company
Country: Germany
Phone: +49 (0) 89 360 900 900
Telefax: +49 (0) 89 360 900 901

Iris Biotech GmbH

Company type: Supplier
IRIS Biotech is specialized in reagents for Peptide Synthesis, PEGylation, Life Science Research and Biocatalysis. We supply our chemical product 4-Benzyl-1-(tert-butoxycarbonyl)piperidine-4-carboxylic acid. We have specific know-how and production capabilities to manufacture and supply products from the following areas from Grams to Multi-Ton Lots: Starting Materials for Peptide Synthesis, Peptidomimetic and Medicinal Chemistry Protected Amino Acids, Coupling Reagents, Linkers and Resins, Natural and Unusual Amino Acids and Building Blocks used in Peptide Synthe ...
Country: Germany   Phone: +49-(0)9231-97121-0   Telefax: +49-(0)9231-97121-99

Skyrun Industrial Co., Ltd.

Company type: Leading producer
Country: P.R.China
Phone: +86-576-84015261
Telefax: +86-576-84015261
Skyrun Industrial Co.Limited, established in 2003, a state-controlled company (By Skyrun Corp. & High Hope) in China, specializing in developing, producing and handing raw pharmaceutical material and intermediates. Additionally 2-Chloro-2-hydroxyiminoacetic acid ethyl ester is supplied by us. We have expanded a compositive entity from initially only as a small manufacturer. We have extensive knowledge of domestic and international pharmaceutical markets. Our working range can be start from small amount in research stage to big bulk for industrial produc ...

Leap Chem Co., Ltd

LEAPChem, a specialized fine chemicals supplier for research, development and production. LEAPChem provides nearly 50,000 rare and innovative chemical products to support the evolving needs of our customers in research & bulk manufacturing activities. Leap Chem Co., Ltd is a seller of Methyl ethanesulfonate. As a highly customer-oriented enterprise, we are committed to providing high-quality customer services and products to our global customers in a cost-effective and efficient manner. Our client list includes many major pharmac ...
Company type: Bulk and laboratory supplier
Country: P.R.China
Phone: +852-30606658

BuGuCh & Partners

Company type: Producer
We, BuGuCh & Partners, are an international acting and innovative company, leading in developing and manufacturing. We operates major facilities in North America, Europe and the Pacific Rim, as well as facilities in China, Japan and Saudi Arabia operated through joint ventures. We maintain independently or are partners of some production sites in Europe, Asia and South America. Our global network is a strength. Our products range from natural gas, oil and basic chemi ...
Country: Germany  

Safety Information

Hazard Classes:
Risk Codes:
33-40-62-41-37/38-36/37/38-22 (R)
Safety Codes:
24/25-36/37/39-36-26 (S)
WGK Germany:
2
RTECS:
YN6130000
Storage temperature:
Store at RT.

What other providers are available for CAS 73-22-3?

In addition to the providers presented here for L-Tryptophan with the CAS number 73-22-3, there are other 63 providers with slightly different product names available for this CAS number.

+14 additional providers that we know from the past
Iris Biotech GmbH
+1 additional providers that we know from the past
Leap Chem Co., Ltd +7 additional providers that we know from the past
Kingreat Chemistry Company Limited | Dayang Chem (Hangzhou) Co.,Ltd. | BIOZOL Diagnostica Vertrieb GmbH | BuGuCh & Partners +20 additional providers that we know from the past
+2 additional providers that we know from the past
Xiamen Equation Chemical Co.,Ltd +1 additional providers that we know from the past
+1 additional providers that we know from the past
+1 additional providers that we know from the past
+2 additional providers that we know from the past
+4 additional providers that we know from the past
+2 additional providers that we know from the past




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