CAS No. 223673-61-8

Batch: Purity:99.8
Mirabegron Chemical Structure
Chemical Structure
Check the Mirabegron product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 223673-61-8
Molecular Formula

C21H24N4O2S

Molecular Weight (MW) 396.51
SMILES C1=CC=C(C=C1)C(CNCCC2=CC=C(C=C2)NC(=O)CC3=CSC(=N3)N)O

Ordering Information

Biological Activity

Mirabegron is a potent and selective β3-adrenoceptor agonist with an EC50 of 22.4 nM for human β3-adrenoceptors. Activation of β3-adrenoceptors stimulates intracellular cAMP accumulation and downstream protein kinase A signaling. This signaling cascade promotes detrusor smooth muscle relaxation during the urine storage phase, thereby enhancing bladder compliance and increasing voided volume per micturition without reducing contraction force or micturition pressure. [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 79 mg/mL (199.23 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 8 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.