CAS No. 5536-17-4

Batch: Purity:99.92
Vidarabine  Chemical Structure
Chemical Structure
Check the Vidarabine product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (2R,3S,4S,5R)-2-(6-aminopurin-9-yl)-5-(hydroxymethyl)oxolane-3,4-diol
CAS Number 5536-17-4
Molecular Formula

C10H13N5O4

Molecular Weight (MW) 267.24
SMILES C1=NC(=C2C(=N1)N(C=N2)C3C(C(C(O3)CO)O)O)N
InChIKey OIRDTQYFTABQOQ-UHTZMRCNSA-N

Ordering Information

Biological Activity

Vidarabine is a purine nucleoside analog and antiviral agent that targets viral DNA polymerase. Upon intracellular phosphorylation to its active triphosphate metabolite, vidarabine inhibits viral DNA synthesis through competitive inhibition of viral DNA polymerase, incorporation into the nascent viral DNA strand, and chain termination. This action blocks viral DNA replication and suppresses herpes simplex and varicella zoster viral propagation. [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 53 mg/mL (198.32 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.