Compound Monograph

Kaurenoic acid

Terpenoids Diterpenes Natural (plant-derived)

ent-Kaur-16-en-19-oic acid — a kaurane diterpene of spikenard root with weak-to-moderate anti-inflammatory and vasorelaxant activity.

Sources · 2

Where Does It Come From?

Kaurenoic acid is a naturally occurring kaurane diterpene, found in American spikenard and Copaiba. Its toxicity is not yet characterized.

Also found in
American spikenard Monograph coming soon
Copaiba Monograph coming soon

Concentration

Content by Source

Concentrations not reported. No percent-dry-weight or mg/g figures have been published for this compound in its source plants.

Research & Evidence

Kaurenoic acid (ent-kaur-16-en-19-oic acid) is a kaurane diterpene present in Aralia racemosa root. It shows weak-to-moderate COX and iNOS inhibition, and in a head-to-head comparison was a less effective vasorelaxant than the related diterpene pimaradienoic acid (PMID 16102255). It is a widely distributed plant diterpene rather than a spikenard marker.

Toxicity & Safety

No isolated-compound toxicity dataset was located. Reports of reproductive and cytotoxic effects exist for kaurane diterpenes generally and should be checked before it is built out.

Placeholder entry — a full monograph is pending via the compound-expansion worklist.