• 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

  • I058584

    Ibotenic Acid

    Analog of glutamate

    ≥98%
  • G0048

    γ-Amino Butyric Acid

    Endogenous neurotransmitter; GABA agonist.

    ≥99%
  • V1868

    Veratramine

    Steroidal alkaloid found in Veratrum and Fritil...

    ≥98%
  • G3454

    Ginsenoside Rb1

    Triterpene saponin found in species of Panax. <...

    ≥98%
  • R0249

    Ramipril

    ACE inhibitor.

    ≥98%
  • C4556

    Clofibric Acid

    Metabolite of clofibrate; PPARα agonist.

    ≥98%
  • T1968

    Terpinen-4-ol

    Monoterpene found in various plant sources.

    ≥98%
  • D5992

    Doxapram Hydrochloride Hydrate

    K+ channel blocker, catecholamine release stimu...

    ≥98%
  • H9803

    Hyaluronic Acid Sodium (0.2 -5 kDA)

    Glycosaminoglycan

  • W317520

    WIN 55,212-2 Mesylate

    Non-selective cannabinoid receptor agonist.

    ≥98%
  • O9234

    Oxiconazole Nitrate

    Imidazole; 14-α demethylase inhibitor.

    ≥98%
  • B9700

    BYL719

    p110α PI3K inhibitor.

    ≥99%, ≥99%ee
  • I8618

    Ivermectin

    Avermectin; glu-gated Cl- channel activator, Gl...

    ≥95%
  • M1975

    S-(N-Methylthiocarbamoyl)-L-cysteine

    Cysteine-ITC conjugate, antioxidant; aldehyde d...

    ≥98%
  • P6859

    Proctolin

    Neuropeptide found in crustaceans and insects.<...

    ≥95%
  • B560000

    RAD51 inhibitor, B02

    RAD51 inhibitor.

    ≥98%
  • T3132

    Thiazovivin

    ROCK inhibitor.

    ≥98%
  • G1650

    Geniposide

    Iridoid glycoside found in Gardenia.

    ≥98%
  • N1977

    Neurokinin A (4-10)

    Endogenous neuropeptide, also known as substanc...

    ≥95%
  • P4560

    Proteolipid Protein (139-151)

    Immunodominant peptide fragment of PLP, used to...

    ≥95%

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