CAS No. 178606-66-1

Batch: Purity:99.97
U-104 (SLC-0111) Chemical Structure
Chemical Structure
Check the U-104 (SLC-0111) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 1-(4-fluorophenyl)-3-(4-sulfamoylphenyl)urea
CAS Number 178606-66-1
Molecular Formula

C13H12FN3O3S

Molecular Weight (MW) 309.32
SMILES C1=CC(=CC=C1NC(=O)NC2=CC=C(C=C2)S(=O)(=O)N)F
InChIKey YJQZNWPYLCNRLP-UHFFFAOYSA-N

Ordering Information

Biological Activity

U-104 (SLC-0111) is a selective carbonic anhydrase inhibitor targeting CA IX and CA XII with low inhibition for CA I and CA II. By selectively inhibiting tumor-associated transmembrane isoforms CA IX and CA XII, U-104 disrupts intracellular pH regulation and extracellular acidification in hypoxic tumor microenvironments. This inhibition impairs cancer cell survival, invasion, and metastasis, offering potential for targeting hypoxia-driven pathways. [1]

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 62 mg/mL (200.43 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.