D(+)-Tryptophan AJI92 Amino acid made in china
2 Inquiries
153-94-6
2026-08-08
D-Biotin,Tobramycin base,L(-)-Carnitine base,Polymyxin B sulfate USP,Kanamycin sulfate monohydrate,Finasteride 99% USP
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Product Description
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Seller Information
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Inquiry History
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DescriptionKeywords
D(+)-Tryptophan
Tryptophan
D-Tryptophan
Quick DetailsProName:D(+)-Tryptophan AJI92 Amino acid made in china
CasNo:153-94-6
Molecular Formula:C11H12N2O2
Appearance:White or off-white crystalline powder
Application:used in medicine
DeliveryTime:prompt shipment
PackAge:as required
Port:China main port
ProductionCapacity:Metric Ton/Day
Purity:≥98.0%
Storage:Room temperature
Transportation:by sea by air express
LimitNum:5 Kilogram
SuperiorityAJI92 standard
DetailsD-Tryptophan
Appearance
White or off-white crystalline powder
Specific optical rotation
＋30.0 ° ~＋33.0°
Heavy metals
Not more than 10ppm
Loss on drying
Not more than 0.20%
Residue on ignition
Not more than 0.10%
Assay
98.0~102.0%
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:
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:
D-Biotin,Tobramycin base,L(-)-Carnitine base,Polymyxin B sulfate USP,Kanamycin sulfate monohydrate,Finasteride 99% USP
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Location:
1613 Guangyin Building,No.42 E.Fengqi Road,Hangzhou,310012 China.
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Payment Terms:
TT against copy of documents,L/C
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Average lead Time:
7
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Total Annual Revenue:
$25 million-$50 million
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Total Employees:
11-50
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Year of Establishment:
2011
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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
