5-Hydroxy-L-tryptophan
1 Inquiries
4350-09-8
2026-07-19
Coenzymes,Inhibito,Enzymes,Zymogens,Substrates,Native Microorganism Creatine Amidinohydrolase
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Product Description
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Seller Information
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Inquiry History
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Description
ProductName 5-Hydroxy-L-tryptophan Cat No CSUB-0079 Form powder Enzyme Commission Number 224-411-1 CAS No 4350-09-8 Molecular Weight 220.22 Storage 2-8°C Synonyms L-5-HTP; L-2-Amino-3-(5-hydroxyindolyl)propionic acid Molecular Formula C11H12N2O3 MDL Number MFCD00064341 PubChem Substance ID 24278131.0 Substrates Aromatic amino acid decarboxylase, L- category Amino Acids and Derivatives(c1517) cas_num 4350-09-8 Basic Info-
Product Name:
L-5-Hydroxytryptophan
Other Name:5-hydroxy-l-tryptopha;pretonine;L-2-AMINO-3-(5-HYDROXYINDOLYL)PROPIONIC ACID;L-5-HYDROXYTRYPTOPHAN HYDRATE;L-5-HYDROXYTRYPTOPHAN;2-AMINO-3-(5-HYDROXY-1H-INDOL-3-YL)PROPIONIC ACID;(-)-5-HYDROXY-L-TRYPTOPHAN;5-HYDROXY-L-TRP-OH
CAS No.:4350-09-8
Molecular Formula:C11H12N2O3
InChIKeys:LDCYZAJDBXYCGN-VIFPVBQESA-N
Molecular Weight:220.22
Exact Mass:220.22
BRN:88200
EC Number:224-411-1
UNII:C1LJO185Q9
UN Number:2811
TSCA:TSCA listed
DSSTox ID:DTXSID1025437
NCI Thesaurus Code:C52181
Color/Form:white
ATC Code:N - Nervous system
HScode:29339990
Categories:
Characteristics-
PSA:
99.3
XLogP3:-2.051
Appearance:white solid
Density:0.902 g/mL at 25 °C (lit.)
Melting Point:270 °C (dec.) (lit.)
Boiling Point:361.16°C (rough estimate)
Flash Point:175 °F
Refractive Index:n20/D1.4850(lit.)
Water Solubility:Slightly soluble
Storage Conditions:2-8°C
Vapor Pressure:2.55X10-11 mm Hg at 25 deg C (est)
Specific rotation:-32.5 º (c=1,H2O on dry basis)
PKA:2.22±0.10(Predicted)
Henrys Law Constant:Henry's Law constant = 2.1X10-18 atm-cu m/mol at 25 °C (est)
Collision Cross Section:152.2 Ų [M+Na]+ [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|148.86 Ų [M-H]- [CCS Type: DT, Method: single field calibrated with Agilent tune mix (Agilent)]|157.88 Ų [M+H]+ [CCS Type: DT, Method: stepped-field]|156.47 Ų [M+Na]+ [CCS Type: DT, Method: stepped-field]|153.72 Ų [M-H]- [CCS Type: DT, Method: stepped-field]|149.8 Ų [M-2H+Na]-
Experimental Properties:Hydroxyl radical reaction rate constant = 2.39X10-10 cu cm/molec-sec at 25 °C (est)|Crystals; specific optical rotation: -32.5 deg at 20 °C/D (water); +16.0 deg at 20 °C/D (4 N HCl) /l-form/|Crystals; specific optical rotation: +32.2 deg at 20 °C/D (water) /d-form/
Air and Water Reactions:L-5-Hydroxytryptophan is sensitive to air. Slightly water soluble .
Reactive Group:Phenols and Cresols
Reactivity Profile:L-5-Hydroxytryptophan reacts with bases. .
Critical Temperature & Pressure:2-8°C
Hazard IdentificationClassification of the substance or mixture
Acute toxicity - Category 3, Oral
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Danger
Hazard statement(s) H301 Toxic if swallowed
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
Response P301+P316 IF SWALLOWED: Get emergency medical help immediately.
P321 Specific treatment (see ... on this label).
P330 Rinse mouth.
Storage P405 Store locked up.
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
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:
Coenzymes,Inhibito,Enzymes,Zymogens,Substrates,Native Microorganism Creatine Amidinohydrolase
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Location:
Shirley, New York 11967, USA
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Payment Terms:
TT against copy of documents,D/P
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Average lead Time:
15
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Total Annual Revenue:
$1 million-$2.5 million
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Year of Establishment:
2004
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Inquiry History1 Inquiries
Country Product Purchase Quantity Date Posted 
South Korea
5-HTP/5-hydroxytryptophan 30% White powder S15 BLRH/VDK
5 KG Dec 1, 2025 Post an enquiry for this product
