CAS No. 26873-85-8

Batch: Purity:100
Ficoll(R) 400 Chemical Structure
Chemical Structure
Check the Ficoll(R) 400 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 26873-85-8
Molecular Formula

(C12H22O11.C3H5ClO)x

Molecular Weight (MW) 434.82

Ordering Information

Biological Activity

Ficoll 400 is a synthetic, highly branched sucrose-epichlorohydrin copolymer that acts as a macromolecular crowding agent. By exerting sterically excluded-volume effects in aqueous solutions, it enhances biochemical reaction rates and promotes liquid-liquid phase separation of proteins. These crowding dynamics facilitate the formation of biomolecular condensates and modulate protein folding, association kinetics, and conformational stability, providing a physical environment that mimics intracellular micro-environments. [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 87 mg/mL (200.08 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 87 mg/mL
Ethanol Insoluble
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.