Heneicosanoic acid (HEA) is a fatty acid found in human milk fat. HEA is also a part of the phospholipids of the articular cartilage boundary lubricant. HEA is a constituent of red blood cell fatty acids.

The seeds of Daucus carota.

[Sar1, Ile8]-Angiotensin II is a peptide that has multiple effects on vascular smooth muscle, including contraction of normal arteries and hypertrophy or hyperplasia of cultured cells or diseased vessels. The biological activities of angiotensin II antagonists upon basal and angiotensin II-stimulated aldosterone production were evaluated in an isolated canine glomerulosa cell preparation.