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D - Tryptophan

Name: D - Tryptophan
Brand: East Chemsources
SKU: pr2411261289
Price: 2 USD
Availability: InStock

2 Inquiries

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CAS No.:

153-94-6

Grade:

Pharmaceutical grade / Food grade

Content:

99%

Port:

Qingdao

Brand:

East Chemsources

Packaging:

25kg/Cardboard Drum

Price valid (until):

2025-09-26

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QINGDAO EAST CHEMSOURCES TRADE CO.,LTD

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

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Product Description
Seller Information
Inquiry History

Description

Product Detail

D - Tryptophan is an important amino acid that holds a unique position and has various important functions in the fields of biochemistry and life sciences.

In terms of chemical structure, D - Tryptophan is an enantiomer of L - Tryptophan. Its molecular formula is C11H12N2O2 , and its molecular weight is 204.23.

Physically, D - Tryptophan is usually a white to slightly yellowish crystalline or crystalline powder. It has relatively low solubility in water, but it is soluble in hot water, dilute acid, and dilute alkali solutions, and insoluble in organic solvents such as eth anol and et her. D - Tryptophan is optically active, and its specific rotation is one of its important physical constants, which can be used for its qualitative and quantitative analysis.

In living organisms, although D - Tryptophan is not a basic amino acid that constitutes proteins like L - Tryptophan, it still has important physiological functions. In some microorganisms and plants, D - Tryptophan can serve as a precursor for the synthesis of certain bioactive substances. For example, in some bacteria, D - Tryptophan is involved in the synthesis of peptidoglycan in the cell wall, which plays a key role in maintaining the integrity of the bacterial cell wall and the normal growth of bacteria. In plants, D - Tryptophan may be involved in the anabolic process of some plant hormones, which has a certain regulatory effect on the growth and development of plants and their adaptability to the environment.

In the medical field, D - Tryptophan has potential medicinal value. Studies have found that D - Tryptophan and its derivatives have certain antibacterial, antiviral, and anti - tumor activities. For example, some D - Tryptophan derivatives can inhibit the proliferation and metastasis of tumor cells, and their mechanism of action may be related to regulating the metabolism of tumor cells and inducing apoptosis of tumor cells. In addition, D - Tryptophan can also be used as a pharmaceutical intermediate for the synthesis of some compounds with special pharmacological effects, providing important raw materials for the research and development of new drugs.

In the food industry, D - Tryptophan also has certain applications. It can be used as a food nutrition fortifier and added to the foods for some special groups of people, such as infant formula milk powder and health foods for the elderly, to meet the amino acid needs of specific groups. At the same time, D - Tryptophan can also be used as a food additive to improve the flavor and taste of food. For example, in some fermented foods, D - Tryptophan can participate in the flavor - forming reaction during the fermentation process, making the food have a unique aroma and taste.

In the chemical industry, D - Tryptophan can be used as a chiral reagent in asymmetric synthesis reactions. Due to its chiral center, it can induce chemical reactions to selectively produce products with specific configurations, so it has important application value in organic synthetic chemistry. By using the chiral induction effect of D - Tryptophan, many optically active compounds can be synthesized, and these compounds have a wide range of applications in the fields of drugs, pesticides, materials, and so on.

The production methods of D - Tryptophan mainly include chemical synthesis and biological fermentation. The chemical synthesis method usually uses indole, pyruvic acid, etc. as raw materials to synthesize D - Tryptophan through a series of chemical reactions. This method can be used for large - scale production, but it requires a relatively complex synthesis process and strict control of reaction conditions. The biological fermentation method uses the metabolic ability of microbial cells to convert substrates such as glucose and nitrogen sources into D - Tryptophan. This method has the advantages of being environmentally friendly and having high - purity products, but the optimization and control of the fermentation process are crucial. It is necessary to select and breed microbial strains and optimize the culture conditions to improve the yield and quality of D - Tryptophan.

Company Introduction: East Chemsources Limited was established in 2008, is a professional company engaged in the development of chemical products. In the past of 15 years，through continuous technological innovation and the use of talent introduction advantages, we have achieved rapid development, and has become an international diversified modern chemical enterprise. At present, our products have been exported to more than 80 countries,including food additives, medical raw materials, chemical products and personal care.

Since the establishment of the company, always adhere to the credibility first, quality first enterprise creed. Our company is committed to creating a customer-centric, customer-demand-oriented, customer value creation and achievement of customer dreams for the purpose of the service concept, with a broad vision and broad mind, committed to creating good benefits and market operation, to build corporate brand.

Basic Info

Product Name:

D-Tryptophan

Other Name:

D-Tryptophan;Tryptophan,D-;D-Tryptophane;(+)-Tryptophan;(R)-Tryptophan;(R)-α-Aminoindole-3-propanoic acid;(R)-α-Amino-3-indolepropionic acid;NSC 97942;(2R)-2-Amino-3-(1H-indol-3-yl)propanoic acid;(2R)-2-Azaniumyl-3-(1H-indol-3-yl)propanoate

CAS No.:

153-94-6

Molecular Formula:

C11H12N2O2

InChIKeys:

InChIKey=QIVBCDIJIAJPQS-SECBINFHSA-N

Molecular Weight:

204.23

Exact Mass:

204.23

BRN:

86198

EC Number:

205-819-9

UNII:

7NS97N9H1G

NSC Number:

97942

DSSTox ID:

DTXSID0046989

HScode:

29339990

Categories:

Amino Acids and Proteins

Characteristics

PSA:

79.1

XLogP3:

-1.1

Appearance:

White to slightly yellow Powder

Density:

1.35 g/cm³

Melting Point:

274 °C

Boiling Point:

50-70 °C

Flash Point:

224.7±25.9 °C

Refractive Index:

31 ° (C=1, H2O)

Water Solubility:

H2O: 11 g/L (20 ºC)

Storage Conditions:

Store at RT.

Vapor Pressure:

4.27E-07mmHg at 25°C

Specific rotation:

31.5 º (c=1, H2O 24 ºC)

Collision Cross Section:

142.6 Å² [M-H]-

Air and Water Reactions:

Slightly soluble in water.

Reactive Group:

Salts, Acidic

Reactivity Profile:

Acidic salts, such as D(+)-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.

See More D-Tryptophan Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions 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

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More D-Tryptophan Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Food additives,Pharmaceutical raw materials,Chemicals,Comestic raw materials

Location:
Room 501, Unit 6, No. 40, hushan road,Licang,Qingdao

Payment Terms:
TT against copy of documents,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
10

Total Annual Revenue:
$1 million-$2.5 million

Total Employees:
11-50

Year of Establishment:
2017

QINGDAO EASTCHEMSORCES TRADE LIMITED is a leading Manufactory supplier of Sorbitol, Citric acid, Sodium hypochlorite based in Qingdao, Shandong, China. With a commitment to quality and customer satisfaction, QINGDAO EASTCHEMSORCES TRADE LIMITED has become a trusted name in the industry. Our product line includes a range of high-quality Sorbitol, Citric acid, Sodium hypochlorite, which are available at competitive prices. QINGDAO EASTCHEMSORCES TRADE LIMITED has established itself as a reliable supplier of chemical products on the echemi.com.

Inquiry History

2 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	D-Tryptophan	250.00 KG	Feb 6, 2026
India	D-Tryptophan	100 KG	Jun 28, 2024

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