2D Structure
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2D chemical structural formula diagram.

3D Structure
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This 3D model represents a theoretically simulated conformation and is for reference only.

Check the NSC45586 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name sodium 5-[[4-[(2,4-diamino-5-methylphenyl)diazenyl]phenyl]diazenyl]-2-hydroxybenzoate
CAS Number 6300-44-3
Molecular Formula

C20H17N6NaO3
Molecular Weight (MW) 412.38
SMILES [Na+].CC1=CC(=C(N)C=C1N)N=NC2=CC=C(C=C2)N=NC3=CC(=C(O)C=C3)C([O-])=O
InChIKey XPYXCDXPWJROPD-UHFFFAOYSA-M

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 82 mg/mL (198.84 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
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).

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