S-methyl-L-methionine is a sulfonium compound that is the conjugate acid of S-methyl-L-methioninate.
Definition
S-methyl-L-methionine is a sulfonium compound that is the conjugate acid of S-methyl-L-methioninate. It has a role as a Saccharomyces cerevisiae metabolite and an Escherichia coli metabolite. It is a conjugate acid of a S-methyl-L-methioninate. It is a tautomer of a S-methyl-L-methionine zwitterion.
Source: PubChem
US FDA substance register · UNII 3485Y39925 · registered name METHYLMETHIONINE · single chemical substance
Sulfonium, [(3S)-3-amino-3-carboxypropyl]dimethyl-, inner salt
Cosmetic roles
Makes skin soft and smoothSKIN CONDITIONING - EMOLLIENTKeeps skin in good condition (CosIng catch-all)SKIN CONDITIONINGGives a tightening feelASTRINGENTProtects skin from outside irritantsSKIN PROTECTINGCares for the mouthORAL CARE
More data — names, identifiers, properties, test records, literature
Official labels & definitions
JCIA labelling name メチルメチオニン: 本品は、次の化学式で表される有機化合物である。
Source: JCIA labelling names (Japan)
Names & identifiers
METHYLMETHIONINEINCI메틸메티오닌Korean label name (MFDS standard)メチルメチオニンJapanese labelling name
- CAS No.chemical registry number
- 4727-40-6
- DTXSIDUS EPA chemical ID
- DTXSID401314761
- DTXCIDUS EPA compound ID
- DTXCID701744690
- IUPAC
- (2S)-2-Amino-4-(dimethylsulfaniumyl)butanoate
- Molecular formula
- C6H13NO2S
- Molecular weight
- 163.24 g/mol
Related literature
- S-Methylmethionine (Vitamin U): A Critical Narrative Review of Pharmacological Mechanisms, Evidence Levels, and Translational Barriers · 2026
- Pharmacological effects of S-methylmethionine sulfonium chloride (vitamin U) · 2025
- Duodenal Eosinophilia in Functional Dyspepsia · 2023
- Effects of S-Methylmethionine Sulfonium Chloride on the Expression of Mucin 2 and Relevant Growth Factors in Piglet Jejunal Epithelial Cells · 2022
- Development of S-Methylmethionine Sulfonium Derivatives and Their Skin-Protective Effect against Ultraviolet Exposure · 2017
Linked databases 12
- ChEMBL
- EU CosIng ingredient list 2
- JCIA labelling names (Japan)
- Korea Cosmetic Association ingredient dictionary
- MFDS (Korea) cosmetic ingredient register 2
- PubChem
- Tlooto literature search 2 3 4 5
- UniChem cross-reference IDs
- US EPA CompTox dashboard
- US FDA substance registration (GSRS)
- US FDA Unique Ingredient Identifier (UNII)
- Wikidata 2