CAS No. 73573-87-2
Batch:
Purity:99.53
Chemical Structure
Check the
Formoterol
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| IUPAC Name | N-[2-hydroxy-5-[1-hydroxy-2-[1-(4-methoxyphenyl)propan-2-ylamino]ethyl]phenyl]formamide | |
|---|---|---|
| CAS Number | 73573-87-2 | |
| Molecular Formula |
C19H24N2O4 |
|
| Molecular Weight (MW) | 344.41 | |
| InChIKey | BPZSYCZIITTYBL-UHFFFAOYSA-N |
Formoterol is a potent, long-acting β2-adrenergic receptor agonist that selectively binds to and activates β2-adrenergic receptors on airway smooth muscle cells. Activation of these receptors stimulates intracellular adenylate cyclase, resulting in elevated cyclic AMP levels and protein kinase A activation. This downstream signaling cascade induces relaxation of bronchial smooth muscle and suppresses airway constriction.
|
Concentration
Volume
Mass
|
|---|
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
69 mg/mL
(200.34 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 5 mg/mL |
| Water | Insoluble |
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).
Note: Technical data last updated: Sep 1, 2026.