CAS No. 503-87-7

Batch: Purity:99.41
2-Thiohydantoin Chemical Structure
Chemical Structure
Check the 2-Thiohydantoin product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 503-87-7
Molecular Formula

C3H4N2OS

Molecular Weight (MW) 116.14
SMILES C1C(=O)NC(=S)N1

Ordering Information

Biological Activity

2-Thiohydantoin is a heterocyclic compound and synthetic reactant used in medicinal chemistry to construct biologically active small molecules. Thiohydantoin-containing derivatives function as critical pharmacophores in drug discovery, demonstrating activity as androgen receptor antagonists and enzyme inhibitors. Functionalized 2-thiohydantoin analogs modulate downstream receptor signaling pathways, leading to the inhibition of cellular proliferation and survival in preclinical disease models. [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 23 mg/mL (198.03 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 12 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).
Note: Technical data last updated: Sep 1, 2026.