CAS No. 23651-95-8

Batch: Purity:99.20
Droxidopa Chemical Structure
Chemical Structure
Check the Droxidopa product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (2S,3R)-2-amino-3-(3,4-dihydroxyphenyl)-3-hydroxypropanoic acid
CAS Number 23651-95-8
Molecular Formula

C9H11NO5

Molecular Weight (MW) 213.19
SMILES C1=CC(=C(C=C1C(C(C(=O)O)N)O)O)O
InChIKey QXWYKJLNLSIPIN-JGVFFNPUSA-N

Ordering Information

Biological Activity

Droxidopa is a synthetic amino acid analog and prodrug that serves as a precursor to norepinephrine and epinephrine. Upon enzymatic conversion by aromatic L-amino acid decarboxylase, droxidopa elevates central and peripheral norepinephrine concentrations. This metabolic conversion restores catecholamine signaling and stimulates vascular alpha-adrenergic pathways to restore neurotransmitter homeostasis and elevate vascular tone. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
1 mg 5 mg 10 mg
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 2 mg/mL (9.38 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)
Water 2 mg/mL
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.