• Skip to primary navigation
  • Skip to main content
  • Skip to footer

LKT Labs

Biochemicals for Life Science Research

  • Products
    • New Products
    • Cancer Biology
    • Cardiovascular
    • Endocrine Signaling and Immunology
    • Metabolic and GI Pathology
    • Microbiology
    • Natural Products
    • Neuroscience
    • Peptides
    • Pharmaceutical Impurities and Derivatives
    • Stem Cell Modulators
  • Services
    • Custom Synthesis
    • Natural Product Isolation
    • Analytical Services
  • Int’l Distributors
  • Support
    • About LKT Labs
    • General Inquiry
    • Bulk Quote Request
    • Document Request
    • Technical Support
    • Catalog Request
    • Product Flyers
  • Contact Us
  • Cart
  • Login / Register
L-5-Hydroxytryptophan

L-5-Hydroxytryptophan

Product ID H9714
Cas No. 4350-09-8
Purity ≥98%
Product Unit SizeCostQuantityStock
250 mg $46.00 In stock
1 g $76.90 In stock
5 g $210.40 In stock
25 g $802.00 In stock
Bulk Quote

Quicklinks

  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Description
  • Product Info
  • Shipping and Storage
  • Downloads
  • References
  • Custom Order

Description

L-5-hydroxytryptophan (L-5-HTP) is an endogenous amino acid precursor of 5-HT and melatonin that is commonly found in dietary supplements. L-5-HTP exhibits antidepressant and antioxidative activities. L-5-HTP acts as an antidepressant in clinical settings and shifts circadian rhythms in animal models. This compound also inhibits UV-induced apoptosis in monocytes.

Product Info

Cas No.

4350-09-8

Purity

≥98%

Formula

C11H12N2O3

Formula Wt.

220.22

IUPAC Name

(2S)-2-amino-3-(5-hydroxy-1H-indol-3-yl)propanoic acid

Synonym

L-5HTP, Oxitriptan, Cincofarm, Levothym, Oxyfann, Telestol

Melting Point

270°C(dec)

Solubility

Slightly soluble in water.

Appearance

White to Gray FIne Powder

Shipping and Storage

Store Temp

Ambient

Ship Temp

Ambient

Downloads

MSDS

H9714 MSDS PDF

Info Sheet

H9714 Info Sheet PDF

References

Jangid P, Malik P, Singh P, et al. Comparative study of efficacy of l-5-hydroxytryptophan and fluoxetine in patients presenting with first depressive episode. Asian J Psychiatr. 2013 Feb;6(1):29-34. PMID: 23380314.

Basu P, Singaravel M, Haldar C. L-5-hydroxytryptophan resets the circadian locomotor activity rhythm of the nocturnal Indian pygmy field mouse, Mus terricolor. Naturwissenschaften. 2012 Mar;99(3):233-9. PMID: 22331255.

Lysek N, Kinscherf R, Claus R, et al. L-5-Hydroxytryptophan: antioxidant and anti-apoptotic principle of the intertidal sponge Hymeniacidon heliophila. Z Naturforsch C. 2003 Jul-Aug;58(7-8):568-72. PMID: 12939046.

Custom Order

  • Size of single unit expressed as number (e.g. '500' in the case of 500 mg)
  • Total quantity of unit size desired (e.g. '10' in the case of 10 x 500 mg). If only one unit is desired, you may leave this blank.
  • This field is for validation purposes and should be left unchanged.

Related Products

  • T3097

    Thymosin α-1 Acetate

    Endogenous peptide, involved in hormone regulat...

    ≥95%
  • B5560

    B-type Natriuretic Peptide (1-32), rat

    Endogenous cardiomodulatory peptide; NPR-A agon...

    ≥95%
  • L9874

    L-(+)-Lysine Monohydrate

    Non-endogenous essential amino acid found in me...

    ≥95%
  • I7359

    1-Isothiocyanato-8-(methylsulfenyl)-octane

    ITC, erucin analog.

    ≥98%
  • E6356

    Epothilone D

    Microtubule depolymerization inhibitor.

    ≥98%
  • W3576

    Withaferin A

    Steroid lactone produced by Withania somnifera;...

    ≥98%
  • P2000

    PF-03758309 Dihydrochloride

    PAK4 inhibitor.

    ≥99%, ≥99%ee
  • W9602

    WY-14643

    A peroxisome proliferator-activated receptor ag...

    ≥98%
  • C2951

    Chlortetracycline Hydrochloride

    Tetracycline; protein translation inhibitor, MM...

    ≥85%
  • D5611

    Docosahexaenoic Acid (all cis-4,7,10,13,16,19) Methyl Ester

    Essential fatty acid found in fish oil, involve...

    ≥99%
  • D6108

    1,4-DPCA

    Prolyl hydroxylase inhibitor.

    ≥98%
  • I5210

    INCB018424

    JAK1/2 inhibitor.

    ≥98%
  • D3228

    Dihydromyristicin

    Found in parsley.

    ≥98%
  • M1679

    Methysticin

    Kavalactone originally found in Piper methystic...

    ≥98%
  • E7858

    Etoricoxib

    NSAID; COX-2 inhibitor.

    ≥99%
  • A9801

    Azaperone

    Butyrophenone; α-adrenergic, D2, histamine ant...

    ≥98%
  • R0243

    Raloxifene Hydrochloride

    SERM.

    ≥98%
  • O7053

    L-Ornithine Hydrochloride

    Non-proteinogenic amino acid, L-arginine metabolit...
    ≥98%
  • K1655

    Kenpaullone

    GSK-3β, HGK, and CDK inhibitor.

    ≥95%
  • K1776

    Ketotifen Fumarate

    H1 histamine and LT antagonist, PDE inhibitor.<...

    ≥98%

Footer

  • Contact Us
  • About Us
  • Site Map
  • Terms and Conditions
LKT Laboratories, Inc.
545 Phalen Blvd.
St. Paul MN, 55130

Ph: (888)-558-5227
Fax: (888)-558-7329

©2025 LKT Laboratories, All Rights Reserved - Products for research use only