CAS No. 3493-12-7

Batch: Purity:98
VitaMin U Chemical Structure
Chemical Structure
Check the VitaMin U product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 3493-12-7
Molecular Formula

C6H14NO2 .Cl

Molecular Weight (MW) 199.7
SMILES C[S+](C)CCC(C(=O)O)N.[Cl-]

Ordering Information

Biological Activity

Vitamin U (S-methylmethionine) is a naturally occurring methionine derivative with reported gastroprotective and anti-inflammatory activities. It modulates secretory, acid-forming, and enzymatic functions within the gastrointestinal tract to maintain cellular and mucosal integrity. Through these cytoprotective actions, Vitamin U promotes mucosal tissue repair and attenuates pathological damage associated with peptic ulcers, colitis, and gastritis. [1][2]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
Water 39 mg/mL
DMSO Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)
FAQ
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.