Insulin (insulin from the bovine pancreas) is a two-chain polypeptide hormone produced in human pancreatic cells.Insulin cattle are often used as a growth supplement for cultured cells.

6-Chloro-2,4-dibromophenol is a marine derived natural products found in Pseudoalteromonas luteoviolacea.

Protein kinase C substrate is a substrate of Protein kinase C, can be used to detect protein. Protein kinase C is a key regulatory element in signal transduction and exerts its effects by catalysing specific substrate phosphorylation.