CAS No. 55-31-2

Batch: Purity:99.90
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Epinephrine HCl Chemical Structure
Chemical Structure
Check the Epinephrine HCl product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 4-[(1R)-1-hydroxy-2-(methylamino)ethyl]benzene-1,2-diol;hydrochloride
CAS Number 55-31-2
Molecular Formula

C9H13NO3.HCl
Molecular Weight (MW) 219.67
SMILES CNCC(C1=CC(=C(C=C1)O)O)O.Cl
InChIKey ATADHKWKHYVBTJ-FVGYRXGTSA-N

Ordering Information

Biological Activity

Epinephrine HCl is an endogenous hormone and neurotransmitter that acts as an agonist of α- and β-adrenergic receptors. Upon binding to these G-protein–coupled receptors, Epinephrine activates downstream adenylate cyclase and phospholipase C signaling pathways. This leads to elevated intracellular cyclic AMP levels and calcium mobilization, modulating vascular smooth muscle tone, cardiac contractility, and metabolic processes including glycogenolysis. [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 44 mg/mL (200.3 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water 44 mg/mL
Ethanol 22 mg/mL
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.