Heptatriacontanoic acid is present in Abelmoschus manihot and Alpinia nigra.

[1][2] Heptatriacontanoic acid was also measured in zooplankton.

[3] The compound 4,21-dimethyl-5,19-di-(trans)-enoyl-heptatriacontanoic acid is the "structure of the major homolog of free mycobacteric acids" of Mycobacterium brumae.

[4] The expired U.S. patent 5502226 covers a method of ω-hydroxy acid preparation that includes heptatriacontanoic acid.

[5] The dictionary definition of heptatriacontanoic acid at Wiktionary