CAS No. 585-99-9

Batch: Purity:99.81
Melibiose Chemical Structure
Chemical Structure
Check the Melibiose product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 585-99-9
Molecular Formula

C12H22O11

Molecular Weight (MW) 342.30
SMILES C(C1C(C(C(C(O1)OCC2C(C(C(C(O2)O)O)O)O)O)O)O)O

Biological Activity

Melibiose is a nondigestible disaccharide composed of galactose and glucose linked by an alpha-(1,6) glycosidic bond. It serves as a natural substrate for alpha-galactosidase enzymes and carbohydrate transport systems such as the cation-coupled melibiose permease (MelB). Through its role in bacterial sugar uptake pathways, melibiose is widely utilized to investigate carbohydrate transport mechanisms and microbial metabolic processes. [1]

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
DMSO 68 mg/mL (198.65 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in 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).

Reference

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Note: Technical data last updated: Sep 1, 2026.