DL-Methionine methylsulfonium chloride
DL-Methionine methylsulfonium chloride (CAS: 3493-12-7), with the empirical formula C6H14ClNO2S and a molecular weight of 199.70 g/mol, is a modified amino acid and a biochemical reagent. It is also known as Vitamin U. This compound is soluble in water and finds utility in various research applications, particularly within cell biology and nutrition research due to its unique biochemical properties.
- IUPAC
- (3-Amino-3-carboxypropyl)dimethyl sulfonium chloride,MMS,Methyl-methionine sulphonium chloride,Vitamin U
- Synonyms
- Vitamin U(3-Amino-3-carboxypropyl)dimethyl sulfonium chlorideMMSMethyl-methionine sulphonium chloride

Biochemical Research Reagent
Utilised as a key reagent in biochemical studies, DL-Methionine methylsulfonium chloride serves in investigations related to amino acid metabolism and modified protein structures. Its properties make it valuable for exploring cellular processes in vitro.
Nutrition Research
As a form of Vitamin U, this compound is employed in research settings to investigate its role in metabolic pathways and its potential contributions to nutritional science. Studies may focus on its effects on cellular health and function.
Cell Biology Applications
DL-Methionine methylsulfonium chloride is used in cell culture and various cell biology experiments. It aids in understanding cellular responses and mechanisms, particularly concerning modified amino acid functionalities.
| Molecular weight | 199.70 |
|---|---|
| Empirical formula | C6H14ClNO2S |
| Assay | ≥99.0% (AT) |
| Solubility | H2O: soluble100 mg/mL, clear, colorless |
| pH | 4.0-5.5 |
| Loss on drying | ≤1% loss on drying |
| Impurities tested | ≤0.002% heavy metals |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Ignition residue | ≤0.1% |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is DL-Methionine methylsulfonium chloride used for?
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DL-Methionine methylsulfonium chloride is primarily used as a biochemical research reagent in studies involving amino acid metabolism, cell biology, and nutrition research, where it is often referred to as Vitamin U.
What is the CAS number and formula for DL-Methionine methylsulfonium chloride?
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The CAS number for DL-Methionine methylsulfonium chloride is 3493-12-7, and its empirical formula is C6H14ClNO2S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies DL-Methionine methylsulfonium chloride with an assay of ≥99.0% (AT) and it is not represented as USP, BP, or EP grade.
What are the safety and handling requirements for this product?
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This compound requires appropriate personal protective equipment, including eyeshields, gloves, and a type N95 (US) or type P1 (EN143) respirator filter. It has a WGK rating of 3 in Germany, indicating it is hazardous to water.
How is DL-Methionine methylsulfonium chloride packed and exported?
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DL-Methionine methylsulfonium chloride is packed and exported according to industry standards to ensure product integrity and safety during transit. Specific packaging details are available upon request.
How can I request a sample or quote for DL-Methionine methylsulfonium chloride?
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To request a sample or a quote for DL-Methionine methylsulfonium chloride, please contact our sales department through the website or by phone. Our team will assist you with your inquiry.
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