SMILES:

[Na;v0].CCOC1=CC=C(NC2=CC=C(C=C2)C(C3=CC=C(C=C3)N(CC)CC4=CC(=CC=C4)[S;v6](O)(=O)=O)=C5C=CC(C=C5)=[N+;v4](CC)CC6=CC(=CC=C6)[S;v6]([O-])(=O)=O)C=C1
Coomassie Blue R-250 Chemical Structure
Chemical Structure
Check the Coomassie Blue R-250 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 6104-59-2
Molecular Formula

C45H45N3O7S2.Na
Molecular Weight (MW) 827.98
SMILES [Na;v0].CCOC1=CC=C(NC2=CC=C(C=C2)C(C3=CC=C(C=C3)N(CC)CC4=CC(=CC=C4)[S;v6](O)(=O)=O)=C5C=CC(C=C5)=[N+;v4](CC)CC6=CC(=CC=C6)[S;v6]([O-])(=O)=O)C=C1

How to Prepare Stock Solution?

Concentration Volume Mass
🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 100 mg/mL (120.77 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 3 mg/mL
Water 2 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).

Jump to

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