D(+)-Tryptophan 98% white Powder staherb staherb
2 Inquiries
153-94-6
Pharmaceutical Grade
98%
CHANGSHA
staherb
25kg/Cardboard Drum
2023-07-06
plant extract,Fruit powder,herb extract,Carnosic acid,Chamomile P.E.,1-Deoxynojirimycin
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Product Description
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Seller Information
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Inquiry History
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DescriptionBasic Info
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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:
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 Ų [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.
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
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Manufactory
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Main Products:
plant extract,Fruit powder,herb extract,Carnosic acid,Chamomile P.E.,1-Deoxynojirimycin
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Location:
No.186,Lugu Valley Garden Road, High-tech Development Zone, Changsha , Hunan, P.R. China
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Payment Terms:
TT against copy of documents,L/C
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Average lead Time:
120
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Total Annual Revenue:
$2.5 million-$5 million
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Total Employees:
11-50
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Year of Establishment:
2010
Changsha Staherb Natural Ingredients Co., Ltd., a good supplier of professional herb extracts, especially those with high purity and standardized production process. Our company devotes to supply high quality products and services to customers in R&D and production fields of health products, cosmetics, feed additives and biopesticides.
With cordial and professional R&D, sales and after-sales service groups, Staherb has potent capabilities both in R&D and production. The company persists in high investment on R&D of active ingredients of plants and promotes innovation on demands of customers. Upon constant R&D and tracing of new technologies and new products, Staherb makes effective cooperation with famous research institutes, such as CAS Kunming Institute of Botany, State Key Lab of Hunan Forest Products and Chemical Engineering, Hunan Agricultural University and so on.
Now the main products of Staherb are standardized high purity plant extracts, including Epimedium (10-98%), Euccomia Bark Extract (5-95%), Amygdalin (50-98%), Ursolic acid (25-98%) and Corosolic acid (1-98%). In order to meet customers’ research needs, our company also provides over 600 plant extracts, most of which are high-purity monomer plant compounds and reference substance. And some products can be supplied with milligram-scale, kilogram-scale or even to ton-scale. In addition, based upon the powerful R&D capability, Staherb can provide both products customization services and R&D outsourcing services according to customers’ specific requirements, so that to meet their continual innovation needs in the fields of natural products’ discovery and production.
Staherb endeavors to accelerate the response rate of supply chain as well as improve the service superiority upon customers’ continual innovation needs. It also devotions to establish good partnerships with customers and to construct a safe development model which is forward-looking, reciprocal and coexisting, thus to create long-term value for customers through division and cooperation as well as complementation. -
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Inquiry History2 Inquiries
Country Product Purchase Quantity Date Posted 
India
D-Tryptophan
250.00 KG Feb 6, 2026
India
D-Tryptophan
100 KG Jun 28, 2024 Post an enquiry for this product
