Asparagusic acid is unique to asparagus. It is responsible for the odorous urine excreted after eating asparagus. Its derivatives ihydroasparagusic acid have an anti-inflammatory effect.

N-Succinimidyl S-acetylthioacetate (SATA) is a protein modification agent that introduces thiol-groups into protein molecules and adds sulfhydryl groups in a protected form to proteins and other amine-containing molecules for later reaction with sulfhydryl reactive crosslinkers such as Sulfo-SMCC, Sulfo-MBS, etc.

Heptanoic acid is an organic compound composed of a seven-carbon chain terminating in a carboxylic acid. It is an oily liquid with an unpleasant rancid odor. It contributes to the odor of some rancid oils. It is slightly soluble in water but well soluble in ethanol and ether.