CAS No. 63-68-3
Batch:
Purity:99.9
Chemical Structure
Check the
L-methionine
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| IUPAC Name | (2S)-2-amino-4-methylsulfanylbutanoic acid | |
|---|---|---|
| CAS Number | 63-68-3 | |
| Molecular Formula |
C5H11NO2S |
|
| Molecular Weight (MW) | 149.21 | |
| SMILES | CSCCC(C(=O)O)N | |
| InChIKey | FFEARJCKVFRZRR-BYPYZUCNSA-N |
L-Methionine is an essential sulfur-containing amino acid that serves as a substrate for methionine adenosyltransferase to generate S-adenosyl-L-methionine (SAMe). As a precursor in the transsulfuration pathway, it facilitates the downstream synthesis of glutathione and enhances cellular antioxidant capacity. L-Methionine regulates methyltransferase-mediated methylation processes and maintains cellular redox homeostasis to support fundamental metabolic pathways. [1]
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Concentration
Volume
Mass
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Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| Water | 29 mg/mL |
| DMSO |
Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.) |
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
- Preheat media/saline to 37°C.
- Mix rapidly (pipette/vortex) upon addition.
- For complex mixes, always add the aqueous phase last.
- Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
Note: Technical data last updated: Sep 1, 2026.