• 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
S-Methyl-L-cysteine

S-Methyl-L-cysteine

Product ID M1564
Cas No. 1187-84-4
Purity ≥99%
Product Unit SizeCostQuantityStock
1 g $49.00 In stock
5 g $107.00 In stock
25 g $428.00 Please Inquire
Bulk Quote

Quicklinks

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

Description

S-Methyl-L-cysteine (SMLC) is found in onions, garlic, cabbage, and legumes; it exhibits antioxidative, neuroprotective, and anti-obesity activities. SMLC is a substrate of the catalytic antioxidant system mediated by methionine sulfoxide reductase A. This compound is involved in extracellular D-serine signaling and enzymatic reduction of oxidative stress, holding potential therapeutic benefit for diseases characterized by NMDA-receptor dysfunction, such as Parkinson’s Disease. SMLC also acts as a potential anti-obesity agent, inhibiting oil drop formation in rat white pre-adipose tissue.

Product Info

Cas No.

1187-84-4

Purity

≥99%

Formula

C4H9NO2S

Formula Wt.

135.18

IUPAC Name

(2R)-2-amino-3-methylsulfanylpropanoic acid

Synonym

(R)-2-Amino-3-(methylmercapto)propionic acid, SMLC

Melting Point

219 -221°C

Solubility

Soluble in 0.1 N NaOH (1% w/v) or water (50 mg/mL).

Appearance

White Crystal Powder

Shipping and Storage

Store Temp

4°C

Ship Temp

Ambient

Downloads

MSDS

M1564 MSDS PDF

Info Sheet

M1564 Info Sheet PDF

Brochures

Natural Products Flyer

References

Ishiwata S, Ogata S, Umino A, et al. Increasing effects of S-methyl-L-cysteine on the extracellular D-serine concentrations in the rat medial frontal cortex. Amino Acids. 2013 May;44(5):1391-5. PMID: 23417484.

Yoshinari O, Shiojima Y, Igarashi K. Anti-obesity effects of onion extract in Zucker diabetic fatty rats. Nutrients. 2012 Oct 22;4(10):1518-26. PMID: 23201769.

Wassef R, Haenold R, Hansel A, et al. Methionine sulfoxide reductase A and a dietary supplement S-methyl-L-cysteine prevent Parkinson's-like symptoms. J Neurosci. 2007 Nov 21;27(47):12808-16. PMID: 18032652.

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

  • D3223

    Difloxacin Hydrochloride

    Fluoroquinolone; bacterial DNA gyrase inhibitor...

    ≥98%
  • M568270

    Mogroside V

    Triterpenoid

    ≥98%
  • A4400

    Alamethicin

    Antimicrobial peptide found in Trichoderma, ind...

    ≥95%
  • A7669

    A-type Natriuretic Peptide (1-28), rat

    Endogenous cardiomodulatory peptide; NPR-A agon...

    ≥95%
  • T3040

    Thienylpentyl Isothiocyanate

    Thienylbutyl ITC analog.

    ≥98%
  • S3584

    Sivelestat Sodium Tetrahydrate

    Neutrophil elastase inhibitor.

    ≥99%
  • K0031

    Kahweol Acetate

    Diterpene found in coffee beans.

    ≥98%
  • A6368

    Aprepitant

    NK1 antagonist.

    ≥98%
  • E0929

    Echinacoside

    Phenylethanoid glycoside found in Echinacea.

    ≥98%
  • H0207

    Hepatitis B Virus Core Protein (128-140)

    B cell epitope found on hepatitis B viral core ...

    ≥95%
  • P3076

    PHT-427

    PDK1 and Akt inhibitor.

    ≥98%
  • R3197

    Rhynchophylline

    Oxyindole alkaloid found in Uncaria sinensis; h...

    ≥98%
  • A2046

    Aflatoxin B2

    Mycotoxin produced by species of Aspergillus; D...

    ≥98%
  • R0212

    Radicicol

    Benzoquinone ansamycin; topoisomerase VI-B, HSP...

    ≥96%
  • U6873

    Ursodeoxycholic Acid

    Endogenous secondary bile acid.

    ≥98%
  • I2056

    Ifosfamide

    Nitrogen mustard, DNA alkylator.

    ≥98%
  • H9863

    Hyperforin Dicyclohexylammonium

    Stable salt form of hyperforin, a compound foun...

    ≥97%
  • O7333

    OSI-906

    IGF-1R and InsR inhibitor.

    ≥98%
  • C9660

    Cypermethrin

    Synthetic type II pyrethroid insecticide; prote...

    ≥95%
  • C9878

    Cytochalasin A

    Mycotoxin produced by Aspergillus; actin polyme...

    ≥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