CAS No. 577-11-7

Batch: Purity:99.48
Docusate Sodium Chemical Structure
Chemical Structure
Check the Docusate Sodium product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 577-11-7
Molecular Formula

C20H37O7S.Na

Molecular Weight (MW) 444.56
SMILES CCCCC(CC)COC(=O)CC(C(=O)OCC(CC)CCCC)S(=O)(=O)[O-].[Na+]

Ordering Information

Biological Activity

Docusate sodium is an anionic surfactant that acts as a stool softener by lowering surface tension at the oil-water interface. It facilitates the penetration of water and lipids into fecal matter, enhancing stool hydration and softening. In addition, docusate sodium alters intestinal mucosal permeability and stimulates mucosal adenylate cyclase activity, promoting fluid and electrolyte secretion into the intestinal lumen to ease gastrointestinal transit. [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
DMSO 88 mg/mL (197.94 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 88 mg/mL
Water 18 mg/mL
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.