2-Methyl-4-pentenoic acid is a branched-chain fatty acid.

Big Endothelin-1 (22-38), human is derived from human, is the 22-38 fragment of Big Endothelin-1 (ET-1) (1-38). Big ET-1 (1-38) is a propeptide of ET-1, which has potent and long-lasting vasoconstrictor effects, equips a specific enzymatic cleavage of the 38 amino acid chain to form ET-1 (1-21) and the C-terminal fragment Big ET-1 (22-38).

(±)5(6)-EpETE methyl ester is a derivative of 5(6)-EpETE which is stable enough to ship and handle routinely.(±) 5(6)-EpETE methyl ester is a chemically less reactive derivative of 5(6)-EpETE.