Molecular Weight: 632.69 g/mol

HRS-4642 Chemical Structure
Chemical Structure
Check the HRS-4642 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 190 mg/mL (300.3 mM) ; Ultrasonicated
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 25 mg/mL
Water 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).

Chemical Information

IUPAC Name 5-ethyl-6-fluoro-4-[(4R,7S,8S)-14-fluoro-17-[[(2R,8S)-2-fluoro-1,2,3,5,6,7-hexahydropyrrolizin-8-yl]methoxy]-10-oxa-2,12,16,18,20-pentazapentacyclo[9.7.1.14,7.02,8.015,19]icosa-1(18),11,13,15(19),16-pentaen-13-yl]naphthalen-2-ol
CAS Number 3033864-81-9
Molecular Formula

C34H35F3N6O3
Molecular Weight (MW) 632.69
InChIKey XLWBILUNGOIIFR-OWBPVYLJSA-N

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