Trimethylamine N-oxide dihydrate a product of the oxidation of trimethylamine is considered as a protein stabilizer that may serve to counteract urea the major osmolyte of sharks skates and rays.

Methyl pseudolarate A is a diterpenoid compound that exerts its antitumor activity by inhibiting cell proliferation and inducing apoptosis.

4-Methylumbelliferyl oleate is a fluorescent substrate for lipases (Ex/Em=320/450 nm), which can be cleaved by lipase and can be used to measure pancreatic inhibitory activity.