Molekula
L-Methionine sulfoxide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
L-Methionine sulfoxide is an oxidized derivative of the essential amino acid L-methionine, used in biochemical research, for example as a substrate for methionine sulfoxide reductase in oxidative-stress studies; it is the oxidized form produced when methionine acts as an antioxidant. It is also employed as a precursor in the production of other methionine derivatives. CAS 3226-65-1, molecular formula C5H11NO3S, with a molecular weight of 165.21. Stored at ambient conditions, it carries no signal word under standard handling. Molekula supplies L-Methionine sulfoxide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Specific rotation | +60 ° - + 68 ° |
| Carbon (C) | 35.4 % - 37.3% |
| Purity | 97.5% - 100% |
| Nitrogen (N) | 8.2 % - 8.8% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 232 - 234 °C |
Source: PubChem CID 158980 (Human Metabolome Database (HMDB))
Identification
| Property | Value |
|---|---|
| SKU | 90034191 |
| CAS Number | 3226-65-1 |
| IUPAC Name | (2S)-2-amino-4-methylsulfinylbutanoic acid |
| EC Number | 221-758-0 |
| Molecular Formula | C5H11NO3S |
| Molecular Weight | 165.21 |
| Exact Mass | 165.046 |
| SMILES | CS(=O)CC[C@@H](C(=O)O)N |
| InChIKey | QEFRNWWLZKMPFJ-YGVKFDHGSA-N |
| InChI | InChI=1S/C5H11NO3S/c1-10(9)3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-,10?/m0/s1 |
| PubChem CID | 158980 |
| REACH Code | Y110 |
| HTS Code | 29309095 |
| Tariff Code | 2930909599 |
Safety & GHS
Detailed safety information available in the SDS — see Documents below.
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- (2S)-2-amino-4-methylsulfinylbutanoic acid
- (2S)-2-azaniumyl-4-methylsulfinylbutanoate
- (2S)-2-azanyl-4-methylsulfinyl-butanoic acid
- 2-Amino-4-(methylsulfinyl)butanoic acid
- 2-amino-4-methanesulfinylbutanoic acid
- 2-Azaniumyl-4-methylsulfinylbutanoate
- Butanoic acid, 2-amino-4-(methylsulfinyl)-
- L-methionine S-oxide
- Methionine S-oxide
- methionine sulfoxide
Frequently asked questions
What is L-Methionine sulfoxide commonly used for?
L-Methionine sulfoxide is primarily used as a research biochemical, for example as a substrate for methionine sulfoxide reductase in studies of oxidative stress, and as a precursor in the synthesis of methionine derivatives.
What is the chemical formula and molecular weight of L-Methionine sulfoxide?
The chemical formula is C₅H₁₁NO₃S, and the molecular weight is 165.21 g/mol.
How should L-Methionine sulfoxide be stored?
Store at ambient temperature in a cool, dry place, away from direct sunlight and moisture.
What purity grades of L-Methionine sulfoxide does Molekula supply?
Molekula supplies analytical grade and biochemical grade L-Methionine sulfoxide, depending on your application requirements.
Can Molekula supply L-Methionine sulfoxide in bulk quantities?
Yes, we offer bulk packaging options for L-Methionine sulfoxide—please contact us for specific quantities and pricing.
What documentation is provided with an order of L-Methionine sulfoxide?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and a batch-specific quality report for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.