L-5-Hydroxytryptophan Customisable to any concentration
ISO COA 1 Inquiries
4350-09-8
Food Grade
99%
SHANGHAI
BJM
25kg/drum
2025-10-03
Octocrylene,Etocrilene,Ethylhexyl Triazone,Tris Base,DL-Homocysteinethiolactone hydrochloride,Thiodiglycolic anhydride
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Product Description
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Seller Information
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Inquiry History
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DescriptionCertificatesBasic Info
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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:
Octocrylene,Etocrilene,Ethylhexyl Triazone,Tris Base,DL-Homocysteinethiolactone hydrochloride,Thiodiglycolic anhydride
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Location:
No .41 Optics Valley Avenue, East Lake High-tech Development Zone, Wuhan ,China
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Payment Terms:
TT against copy of documents,L/C,TT against B/L draft before shipment,100% TT in advance
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Average lead Time:
10
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Total Annual Revenue:
$2.5 million-$5 million
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Total Employees:
51-100
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Year of Establishment:
2013
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Certifications:
Trade Mark,ISO,Trade Mark
Wuhan BJM Pharm Inc. was found in 2013, located in Hubei Province, where has long history, rich culture, convenient traffic, beautiful environment and preferential policy.
We have two factories in Dezhou , Shandong and Xianning, Hubei. The factory covers an area of 48,000 square meters with the building area of 26,000 square meters. We are specialized in the manufacture of pharmaceutical intermediates and cosmetic additives with good inspection equipments and innovative R & D capability.
In 2006, We established Lingxian Microworld Chemical New Material Co,.Ltd.
In 2008, We passed ISO9001:2008 quality system certificate
In 2013, We established Wuhan Benjamin Pharmaceutical Chemical Co.,Ltd , and obtain self-operation Import & Export right, mainly responsible for domestic and foreign business. At the same time, we set up R&D lab in Wuhan,Hubei province, can undertake various custom synthesis of intermediates and APIs.
In 2016, successfully invest to Hubei Betterorganic Technology Inc, and obtain a registered trademark “ BJM ”.
We are specialized in the R&D ,production and sales of Erdosteine intermeditae,Pirfenidone, Letrozole and related intermediates.
We stick to the principle as: people-oriented, customer first, Hope to establish a win-win business relationship with all friends
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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
