CAS No. 51022-70-9

Batch: Purity:99.93
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Salbutamol (Albuterol) Sulfate Chemical Structure
Chemical Structure
Check the Salbutamol (Albuterol) Sulfate product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 4-[2-(tert-butylamino)-1-hydroxyethyl]-2-(hydroxymethyl)phenol;sulfuric acid
CAS Number 51022-70-9
Molecular Formula

C13H21NO3.H2SO4
Molecular Weight (MW) 337.39
SMILES CC(C)(C)NCC(C1=CC(=C(C=C1)O)CO)O.CC(C)(C)NCC(C1=CC(=C(C=C1)O)CO)O.OS(=O)(=O)O
InChIKey OVICLFZZVQVVFT-UHFFFAOYSA-N

Ordering Information

Biological Activity

Salbutamol Sulfate is a short-acting β2-adrenergic receptor agonist that selectively stimulates β2-adrenoceptors. Agonism of β2-adrenergic receptors activates adenylate cyclase, leading to increased intracellular cyclic AMP production and activation of downstream protein kinase A (PKA) pathways. This signaling cascade mediates bronchial smooth muscle relaxation, effectively counteracting bronchial spasm and preventing airway hyperresponsiveness. [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
Water 67 mg/mL
DMSO Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous 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).

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