Heneicosapentaenoic Acid (HPA; Item No. 10670) is a 21:5 w-3 fatty acid present in trace amounts in green algae and in fish oils. Its chemical composition is similar to eicosapentaenoic acid (EPA; Item No. 90110) except elongated with one carbon on the carboxyl end, placing the first double bond in the D6 position.{5246} HPA can be used to study the significance of the position of the double bonds in n-3 fatty acids. It incorporates into phospholipids and into triacylglycerol in vivo with the same efficiency as EPA and docosahexaenoic acid (DHA; Item No. 90310) and exhibits strong inhibition of arachidonic acid (Item No. 90010) synthesis from linoleic acid (Item No. 90150).{5246} Heneicosapentaenoic acid ethyl ester is a more lipophilic, stabilized form of the free acid.
1 mg
CAS number
Cayman Chemical
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Dry Ice
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