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A9298 SIGMA Methyl arachidonate ≥99% (GC) Synonym: Arachidonic acid methyl ester CAS Number 2566-89-4 Empirical Formula (Hill Notation) C21H34O2 Molecular Weight 318.49 assay ≥99% (GC) shipped in dry ice storage temp. −20°C Description Packaging Sealed ampule under vacuum. Biochem/physiol Actions Unlike most unsaturated fatty acid methyl esters, methyl arachidonate is a potent activator of protein kinase C at 5–50 μM. At the low end of the effective concentration range, the effect is due to cyclooxygenase products, while lipoxygenase products mediate the effect at higher concentrations.1
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