Molecular Weight: 262.65 g/mol

5-Chloro-2'-deoxyuridine Chemical Structure
Chemical Structure
Check the 5-Chloro-2'-deoxyuridine 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 53 mg/mL (201.78 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 53 mg/mL
Ethanol 19 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).

Chemical Information

IUPAC Name 5-chloro-1-[(2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidine-2,4-dione
CAS Number 50-90-8
Molecular Formula

C9H11ClN2O5
Molecular Weight (MW) 262.65
InChIKey NJCXGFKPQSFZIB-RRKCRQDMSA-N

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