CAS No. 506-32-1

Batch: Purity:99
Arachidonic acid Chemical Structure
Chemical Structure
Check the Arachidonic acid product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 506-32-1
Molecular Formula

C20H32O2

Molecular Weight (MW) 304.47

Ordering Information

Biological Activity

Arachidonic acid is an essential polyunsaturated fatty acid and a key structural constituent of cellular membranes. As a central lipid mediator, it serves as the primary precursor in the biosynthesis of eicosanoids, including prostaglandins, thromboxanes, and leukotrienes via the cyclooxygenase (COX) and lipoxygenase (LOX) pathways. These downstream bioactive metabolites regulate diverse physiological processes, such as inflammatory signaling, vascular tone, platelet aggregation, and cellular responses to tissue injury. [1][2]

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
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.