CAS No. 26807-65-8

Batch: Purity:100
Indapamide  Chemical Structure
Chemical Structure
Check the Indapamide product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 26807-65-8
Molecular Formula

C16H16ClN3O3S

Molecular Weight (MW) 365.83
SMILES CC1CC2=CC=CC=C2N1NC(=O)C3=CC(=C(C=C3)Cl)S(=O)(=O)N

Ordering Information

Biological Activity

Indapamide is a non-thiazide sulfonamide diuretic that targets the Na+-Cl- cotransporter in the renal distal convoluted tubule. By inhibiting sodium and chloride reabsorption, indapamide promotes renal excretion of sodium, chloride, and water to reduce fluid volume and edema. Additionally, indapamide modulates vascular smooth muscle tone by attenuating transmembrane calcium influx, leading to reduced vascular resistance and relaxed arterial smooth muscle. [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 73 mg/mL (199.54 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 73 mg/mL
Water 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.