• 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 $77.00 In stock
5 g $210.00 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

  • F1895

    Fexofenadine Hydrochloride

    Histamine H1 antagonist.

    ≥98%
  • C0148

    Calcitonin, human

    Endogenous neuropeptide hormone, lowers extrace...

    ≥95%
  • V5254

    Vincristine Sulfate

    Vinca alkaloid found in Catharanthus; microtubu...

    ≥98%
  • N1858

    Neosolaniol

    Type A trichothecene mycotoxin produced by Fusa...

    ≥98%
  • A7204

    AS-605240

    p110δ PI3K inhibitor.

    ≥98%
  • U698578

    Urolithin C

    Ellagic acid derivative produced by gut microfl...

    ≥98%
  • H5750

    Homoharringtonine

    Alkaloid found in Cephalotaxus; ribosomal prote...

    ≥97%
  • B8070

    2-tert-Butyl-4-Hydroxyanisole

    BHA derivative, antioxidative food and cosmetic...

    ≥99% single isomer
  • G7340

    GSK-126

    EZH2 HMT inhibitor.

    ≥98%, ≥99%ee
  • G733400

    GSK-2578215A

    Selective inhibitor of LRRK2.

    ≥98%
  • E2003

    Efavirenz

    Non-nucleoside RT inhibitor.

    ≥99%
  • G4797

    GLYX-13 Trifluoroacetate

    Peptide; NMDA partial agonist.

    ≥98%
  • F0275

    Fasudil Hydrochloride

    ROCK inhibitor.

    ≥98%
  • M1708

    Mecamylamine Hydrochloride

    Monoterpene; nAChR antagonist.

    ≥98%
  • C4559

    Clomiphene Citrate

    Used for in vitro fertilization; FIASMA, SERM.<...

    ≥98%
  • V9200

    VX-950

    NS3/4A serine protease inhibitor.

    ≥98%
  • A5130

    Amphotericin B

    Polyene, binds ergosterol and induces membrane ...

    ≥90%
  • L3550

    Limonin

    Furanolactone found in citrus fruits.

    ≥98%
  • D3348

    11,12-Dimethoxydihydrokawain

    Kawain derivative, lactone found in Piper methy...

    ≥97%
  • S8247

    Sulfasalazine

    Mesalazine derivative, sulfa drug; sepiapterin ...

    ≥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

©2026 LKT Laboratories, All Rights Reserved - Products for research use only