Cat. No.: HY-B1716

L-5-Hydroxytryptophan

(Synonyms: L-5-HTP; Oxitriptan)

3 Cited Publications

고객리뷰

Based on 3 publication(s) in Google Scholar

L-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. L-5-Hydroxytryptophan (L-5-HTP) is used to treat fibromyalgia, myoclonus, migraine, and cerebellar ataxia.

연구목적의 판매만을 진행합니다. 환자를 대상으로 한 판매는 하지 않습니다.

Purity: 99.99%
CAS No.: 4350-09-8
화학식: C₁₁H₁₂N₂O₃
분자량:220.23

보관:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year

L-5-Hydroxytryptophan Chemical Structure

CAS No.: 4350-09-8

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Top Publications Citing

Use of MCE Products

Fluorescent Dye

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity
- 제품 설명
- IC₅₀ & Target
- Cellular Effect
- In Vivo
- Clinical Trial
Chemical Information
Publications (3)
용액&용해도
- In Vitro
- In Vivo
순도&문서
References
Help & FAQs
Classifications
Bioz

Biological Activity

제품 설명

L-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].

IC₅₀ & Target

Human Endogenous Metabolite

All Endogenous Metabolite Isoforms :

Cellular Effect

Cell Line	Type	Value	Description	References
HEK293	EC₅₀	0.13 μM Compound: 5-HT	Agonist activity at 5-HT2A receptor (unknown origin) expressed in HEK293 cell membranes assessed as induction of [35S]-GTPgammaS binding incubated for 30 mins by liquid scintillation counting method Agonist activity at 5-HT2A receptor (unknown origin) expressed in HEK293 cell membranes assessed as induction of [35S]-GTPgammaS binding incubated for 30 mins by liquid scintillation counting method	[PMID: 26227779]

In Vivo

Note:
Please do not refer to only one article to determine the experimental conditions. It is recommended to determine the optimal experimental conditions (animal strain, age, dosage, frequency and cycle, detection time and indicators, etc.) through preliminary experiments before the formal experiment.

L-5-Hydroxytryptophan can be used in animal modeling to construct animal depression models.

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial

NCT Number	Sponsor	Condition	Start Date	Phase A549
NCT01329991	Plexxikon\|		2011-05	PHASE1

Chemical Information

CAS No. 4350-09-8
Appearance Solid
분자량 220.23
화학식 C₁₁H₁₂N₂O₃
Color White to light brown
SMILES

N[C@@H](CC1=CNC2=CC=C(O)C=C12)C(O)=O
Synonyms

L-5-HTP; Oxitriptan
Structure Classification
- Phenols
- Monophenols
- Amino acids
Initial Source
- Plants
- other families
- Endogenous metabolite
선적

Room temperature in continental US; may vary elsewhere.

보관

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	2 years
	-20°C	1 year

Publications (3)

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Science

Commensal-driven serotonin production modulates in vivo delivery of synthetic and viral vectors. [Abstract]

2026 Mar 19;391(6791):eadu7686. PMID: 41855345
SSRN

2026 Mar 6.
Research Square Preprint

2021 Aug.

용액&용해도

In Vitro:

H₂O : 14 mg/mL (63.57 mM; Need ultrasonic)

DMSO : 12.5 mg/mL (56.76 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

4.5407 mL

22.7035 mL

45.4071 mL

5 mM

0.9081 mL

4.5407 mL

9.0814 mL

10 mM

0.4541 mL

2.2704 mL

4.5407 mL

Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.

Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

몰농도 계산기

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass Mass

Concentration Concentration

Volume Volume

Molecular Weight Molecular Weight

농도 희석 계산기

Concentration _(start) × Volume _(start) = Concentration _(final) × Volume _(final)

Concentration _(start) Concentration _(start)

Volume _(start) Volume _(start)

Concentration _(final) Concentration _(final)

Volume _(final) Volume _(final)

In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

Stock Solution Working Solution

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline

Solubility: ≥ 1.25 mg/mL (5.68 mM); Clear solution

This protocol yields a clear solution of ≥ 1.25 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

Protocol 2

Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)

Solubility: ≥ 1.25 mg/mL (5.68 mM); Clear solution

This protocol yields a clear solution of ≥ 1.25 mg/mL (saturation unknown).

Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg
Animal Weight (Per Animal) Animal Weight (Per Animal)
g
Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL
Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
%
+
+
%
Tween-80 + +
%
Saline +

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Working solution concentration: 0.22 mg/mL

순도&문서

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (276 KB)
SDS (480 KB)
- English - EN (480 KB)
- Français - FR (480 KB)
- Deutsch - DE (480 KB)
- Norwegian - NO (480 KB)
- Español - ES (480 KB)
- Swedish - SV (480 KB)
- Italian - IT (480 KB)
- Korean - KR (480 KB)
- Portuguese - PT (480 KB)
COA (2659 KB)
Elemental Analysis Report (2659 KB)
HNMR (2659 KB)
CNMR (2659 KB)
RP-HPLC (2659 KB)
NP-HPLC (2659 KB)
MS (2659 KB)
LCMS (2659 KB)
IR (2659 KB)
GC (2659 KB)
OR (2659 KB)
SDS-PAGE (2659 KB)
SEC-HPLC (2659 KB)
Other Report (2659 KB)
Handling Instructions (2659 KB)

References

[1]. ARVID CARLSSON, et al. 3,4-Dihydroxyphenylalanine and 5-Hydroxytryptophan as Reserpine Antagonists. Nature 180, page1200 (1957).

[2]. Caruso I, et al. Double-blind study of 5-hydroxytryptophan versus placebo in the treatment of primary fibromyalgia syndrome. J Int Med Res. 1990 May-Jun;18(3):201-9. [Content Brief]

[3]. Thal LJ, et al. Treatment of myoclonus with L-5-hydroxytryptophan and carbidopa: clinical, electrophysiological, and biochemical observations. Ann Neurol. 1980 Jun;7(6):570-6. [Content Brief]

[4]. Boiardi A, et al. 5-OH-Tryptophane in migraine: clinical and neurophysiological considerations. J Neurol. 1981;225(1):41-6. [Content Brief]

[5]. Trouillas P, et al. Improvement of cerebellar ataxia with levorotatory form of 5-hydroxytryptophan. A double-blind study with quantified data processing. Arch Neurol. 1988 Nov;45(11):1217-22. [Content Brief]

Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

Complete Stock Solution Preparation Table

Storage method and period of stock solution: -80°C, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO / H₂O	1 mM	4.5407 mL	22.7035 mL	45.4071 mL	113.5177 mL
	5 mM	0.9081 mL	4.5407 mL	9.0814 mL	22.7035 mL
	10 mM	0.4541 mL	2.2704 mL	4.5407 mL	11.3518 mL
	15 mM	0.3027 mL	1.5136 mL	3.0271 mL	7.5678 mL
	20 mM	0.2270 mL	1.1352 mL	2.2704 mL	5.6759 mL
	25 mM	0.1816 mL	0.9081 mL	1.8163 mL	4.5407 mL
	30 mM	0.1514 mL	0.7568 mL	1.5136 mL	3.7839 mL
	40 mM	0.1135 mL	0.5676 mL	1.1352 mL	2.8379 mL
	50 mM	0.0908 mL	0.4541 mL	0.9081 mL	2.2704 mL
H₂O	60 mM	0.0757 mL	0.3784 mL	0.7568 mL	1.8920 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

Keywords

L-5-Hydroxytryptophan

3 Cited Publications

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L-5-Hydroxytryptophan

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Publications Citing Use of MedChemExpress (MCE) L-5-Hydroxytryptophan

All Endogenous Metabolite Isoforms

Biological Activity

Chemical Information

Publications (3)

용액&용해도

순도&문서

References

Help & FAQs

Complete Stock Solution Preparation Table

L-5-Hydroxytryptophan Related Classifications

HY-B1716 Related Classifications