SMILES:

O.O.O.O.O.O.[Na+].[Na+].COC1=CC(=CC(=C1OC)OC)NC2=NC=C(F)C(=N2)NC3=NC4=C(OC(C)(C)C(=O)N4CO[P]([O-])([O-])=O)C=C3
Fostamatinib disodium hexahydrate Chemical Structure
Chemical Structure
Check the Fostamatinib disodium hexahydrate product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name disodium;[6-[[5-fluoro-2-(3,4,5-trimethoxyanilino)pyrimidin-4-yl]amino]-2,2-dimethyl-3-oxopyrido[3,2-b][1,4]oxazin-4-yl]methyl phosphate;hexahydrate
CAS Number 914295-16-2
Molecular Formula

C23H36FN6Na2O15P
Molecular Weight (MW) 732.51
SMILES O.O.O.O.O.O.[Na+].[Na+].COC1=CC(=CC(=C1OC)OC)NC2=NC=C(F)C(=N2)NC3=NC4=C(OC(C)(C)C(=O)N4CO[P]([O-])([O-])=O)C=C3
InChIKey ZQGJCHHKJNSPMS-UHFFFAOYSA-L

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 (136.51 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.