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 Lufotrelvir (PF-07304814) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name [(3S)-3-[[(2S)-2-[(4-methoxy-1H-indole-2-carbonyl)amino]-4-methylpentanoyl]amino]-2-oxo-4-[(3S)-2-oxopyrrolidin-3-yl]butyl] dihydrogen phosphate
CAS Number 2468015-78-1
Molecular Formula

C24H33N4O9P
Molecular Weight (MW) 552.51
SMILES COC1=CC=CC2=C1C=C([NH]2)C(=O)NC(CC(C)C)C(=O)NC(CC3CCNC3=O)C(=O)CO[P](O)(O)=O
InChIKey FQKALOFOWPDTED-WBAXXEDZSA-N

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 (180.99 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 50 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).

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