L-Methionine sulfoxide - ≥98% , CAS No.3226-65-1

CAS: 3226-65-1 Cat. No.: L134616 Molecular Weight: 165.21 Beilstein Registry Number: 4129939 EC Number: 221-758-0
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
(2S)-2-amino-4-methylsulfinyl-butyric acid | Q27102175 | CHEBI:17016 | (2S)-2-azanyl-4-methylsulfinyl-butanoic acid | L-methionine sulfoxide | alpha-amino-gamma-(methylsulfinyl)-Butyric acid | L-Methionine, S-oxide | 4-METHYLBENZENECARBONYL CHLORIDE | met
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
L134616-1g
1
$9.90
5g
L134616-5g
2
$22.90
25g
L134616-25g
3
$69.90
100g
L134616-100g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$259.90
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

L-Methionine sulfoxide can be used as a substrate to study the specificity and kinetics of various methionine sulfoxide reductases.
A structural analog of glutamate.

Specifications

Synonyms
(2S)-2-amino-4-methylsulfinyl-butyric acid | Q27102175 | CHEBI:17016 | (2S)-2-azanyl-4-methylsulfinyl-butanoic acid | L-methionine sulfoxide | alpha-amino-gamma-(methylsulfinyl)-Butyric acid | L-Methionine, S-oxide | 4-METHYLBENZENECARBONYL CHLORIDE | met
Specifications & Purity
≥98%
Biochemical and Physiological Mechanisms
L-Methionine sulfoxide, a structural analog of glutamate, may be used as a substrate to study the specificity and kinetics of various methionine sulfoxide reductase(s).
Storage
Store at 2-8°C, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Pubchem Sid504757434
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504757434
Canonical SmilesCS(=O)CCC(C(=O)O)N
IUPAC Name(2S)-2-amino-4-methylsulfinylbutanoic acid
InChIKeyQEFRNWWLZKMPFJ-YGVKFDHGSA-N
INCHI1S/C5H11NO3S/c1-10(9)3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-,10?/m0/s1
Isomeric SMILES CS(=O)CC[C@@H](C(=O)O)N
WGK Germany 3
Molecular Weight 165.21
Beilstein 4129939
Reaxy-Rn 2206690
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2206690&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassAmino acids, peptides, and analogues
Intermediate Tree Nodes Amino acids and derivatives - Alpha amino acids and derivatives - Alpha amino acids
Direct ParentL-alpha-amino acids
Alternative Parents Thia fatty acids  Sulfoxides  Amino acids  Sulfinyl compounds  Monocarboxylic acids and derivatives  Carboxylic acids  Organopnictogen compounds  Organic oxides  Monoalkylamines  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents L-alpha-amino acid - Thia fatty acid - Fatty acid - Fatty acyl - Sulfoxide - Amino acid - Carboxylic acid - Monocarboxylic acid or derivatives - Sulfinyl compound - Carbonyl group - Organic oxygen compound - Organic nitrogen compound - Primary amine - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Amine - Primary aliphatic amine - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as l-alpha-amino acids. These are alpha amino acids which have the L-configuration of the alpha-carbon atom.
External Descriptors methionine S-oxide
3D Structure
Interactive Chemical Structure Model





Associated Targets(non-human)
Ggt1 Gamma-glutamyltranspeptidase 1 (36 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

8 results found

Lot NumberCertificate TypeDateItem
F2609502Certificate of AnalysisMay 09, 2026 L134616
F2609504Certificate of AnalysisMay 09, 2026 L134616
F2609507Certificate of AnalysisMay 09, 2026 L134616
F2623628Certificate of AnalysisMay 09, 2026 L134616
E2523037Certificate of AnalysisMay 29, 2025 L134616
C23111117Certificate of AnalysisDec 06, 2024 L134616
C23111127Certificate of AnalysisDec 06, 2024 L134616
C23111133Certificate of AnalysisDec 06, 2024 L134616
Chemical and Physical Properties
SensitivityAir Sensitive,Heat Sensitive,Hygroscopic
Melt Point(°C)255 °C
Molecular Weight165.210 g/mol
XLogP3-4.100
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count4
Exact Mass165.046 Da
Monoisotopic Mass165.046 Da
Topological Polar Surface Area99.600 Ų
Heavy Atom Count10
Formal Charge0
Complexity148.000
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count1
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
Reviews

Customer Reviews

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