SMILES:

C1C2CNCC1C3=CC4=NC=CN=C4C=C23.C(C(C(=O)O)O)(C(=O)O)O
Varenicline Tartrate (CP 526555-18) Chemical Structure
Chemical Structure
Check the Varenicline Tartrate (CP 526555-18) product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (2R,3R)-2,3-dihydroxybutanedioic acid;(1S,12R)-5,8,14-triazatetracyclo[10.3.1.02,11.04,9]hexadeca-2,4,6,8,10-pentaene
CAS Number 375815-87-5
Molecular Formula

C13H13N3·C4H6O6
Molecular Weight (MW) 361.35
SMILES C1C2CNCC1C3=CC4=NC=CN=C4C=C23.C(C(C(=O)O)O)(C(=O)O)O
InChIKey TWYFGYXQSYOKLK-CYUSMAIQSA-N

How to Prepare Stock Solution?

Concentration Volume Mass
🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
Water 72 mg/mL
DMSO 16 mg/mL (44.27 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
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).

Aliquotting Service

Free Aliquotting Service

Pre-aliquoted for Longevity: Solid-state aliquots offer significantly longer shelf life compared to stock solutions, ensuring maximum stability for every use.

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