Molecular Weight: 353.4 g/mol

NI-42 Chemical Structure
Chemical Structure
Check the NI-42 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 71 mg/mL (200.9 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).

Chemical Information

IUPAC Name 4-cyano-N-(1,3-dimethyl-2-oxoquinolin-6-yl)benzenesulfonamide
CAS Number 1884640-99-6
Molecular Formula

C18H15N3O3S

Molecular Weight (MW) 353.4
SMILES CN1C(=O)C(=CC2=C1C=CC(=C2)N[S](=O)(=O)C3=CC=C(C=C3)C#N)C
InChIKey BMVCSXFOQPYKKC-UHFFFAOYSA-N
Note: Technical data last updated: Sep 1, 2026.