Dideu support high quality 5-hydroxytryptophan
1 Inquiries
4350-09-8
Food Grade
99%
Shanghai
Dideu
25kg/Drum
2026-01-01
Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst
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Product Description
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial ReferenceL-5-Hydroxytryptophan (L-5-HTP), a naturally occurring amino acid and a dietary supplement for use as an antidepressant, appetite suppressant, and sleep aid, is the immediate precursor of the neurotransmitter serotonin and a reserpine antagonist[1]. L-5-Hydroxytryptophan (L-5-HTP) is used to treat fibromyalgia, myoclonus, migraine, and cerebellar ataxia[2][3][4][5].
L-5-hydroxytryptophan appears as colorless to pale pink crystals. (NTP, 1992)|Solid
L-5-hydroxytryptophan appears as colorless to pale pink crystals. (NTP, 1992)|5-hydroxy-L-tryptophan is the L-enantiomer of 5-hydroxytryptophan. It has a role as a human metabolite, a plant metabolite and a mouse metabolite. It is a 5-hydroxytryptophan, a hydroxy-L-tryptophan and a non-proteinogenic L-alpha-amino acid. It is an enantiomer of a 5-hydroxy-D-tryptophan. It is a tautomer of a 5-hydroxy-L-tryptophan zwitterion.|5-Hydroxytryptophan (5-HTP), also known as oxitriptan (INN), is a naturally occurring amino acid and metabolic intermediate in the synthesis of serotonin and melatonin. 5-HTP is sold over-the-counter in the United Kingdom, United States and Canada as a dietary supplement for use as an antidepressant, appetite suppressant, and sleep aid, and is also marketed in many European countries for the indication of major depression under trade names like Cincofarm, Levothym, Levotonine, Oxyfan, Telesol, Tript-OH, and Triptum. Several double-blind placebo-controlled clinical trials have demonstrated the effectiveness of 5-HTP in the treatment of depression, though a lack of high quality studies has been noted. More study is needed to determine efficacy in treating depression.|Oxitriptan is an aromatic amino acid with antidepressant activity. In vivo, oxitriptan (or 5-hydroxytryptophan) is converted into 5-hydroxytryptamine (5-HT or serotonin) as well as other neurotransmitters. Oxitriptan may exert its antidepressant activity via conversion to serotonin or directly by binding to serotonin (5-HT) receptors within the central nervous system (CNS). Endogenous oxitriptan is produced from the essential amino acid L-tryptophan. The exogenous therapeutic form is isolated from the seeds of the African plant Griffonia simplicifolia.|The immediate precursor in the biosynthesis of SEROTONIN from tryptophan. It is used as an antiepileptic and antidepressant.
white to pale grey powder
ChEBI: 5-hydroxy-L-tryptophan is the L-enantiomer of 5-hydroxytryptophan. It has a role as a human metabolite, a plant metabolite and a mouse metabolite. It is a 5-hydroxytryptophan, a hydroxy-L-tryptophan and a non-proteinogenic L-alpha-amino acid. It is an enantiomer of a 5-hydroxy-D-tryptophan. It is a tautomer of a 5-hydroxy-L-tryptophan zwitterion.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:
Chemical Pesticides,Food Additives,Agrochemicals,Active Pharm Ingredients,Flavors and Fragrances,Chemical Catalyst
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Location:
https://www.dideu.com/en/
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Payment Terms:
TT against copy of documents,D/P,L/C,D/A,O/A,TT against B/L draft before shipment,100% TT in advance
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Average lead Time:
7
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Total Annual Revenue:
Above $100 million
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Total Employees:
Above 1000
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Year of Establishment:
2016
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Certifications:
ISO Certificate,REACH
">Company Profile -
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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
