Molecular Weight: 630.55 g/mol

Bemnifosbuvir Hemisulfate (AT-527) Chemical Structure
Chemical Structure
Check the Bemnifosbuvir Hemisulfate (AT-527) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

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 100 mg/mL (158.59 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 100 mg/mL
Ethanol 100 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).

Chemical Information

IUPAC Name bis(propan-2-yl (2S)-2-[[[(2R,3R,4R,5R)-5-[2-amino-6-(methylamino)purin-9-yl]-4-fluoro-3-hydroxy-4-methyloxolan-2-yl]methoxy-phenoxyphosphoryl]amino]propanoate);sulfuric acid
CAS Number 2241337-84-6
Molecular Formula

C24H33FN7O7P.1/2H2O4S
Molecular Weight (MW) 630.55
SMILES CNC1=C2N=C[N](C3OC(CO[P](=O)(NC(C)C(=O)OC(C)C)OC4=CC=CC=C4)C(O)C3(C)F)C2=NC(=N1)N.O[S](O)(=O)=O
InChIKey QIGYBLSWYRTXCA-NVSCJZCKSA-N

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