D-Pantothenic acid, also called vitamin B5, is a water-soluble vitamin and an essential nutrient for many animals.

Bacterial Substrate III, Abz/DNP TFA is an internally quenched fluorescent peptide substrate. Staphylococcus aureus transpeptidase sortase A (SrtA) reacts with its native substrate Bacterial Sortase Substrate III, Abz/DNP, cleaving it and catalyzing the formation of an amide bond between the carboxyl group of threonine and the amino group of cell-wall crossbridges.

Demethoxydeacetoxypseudolaric acid B's the metabolic reaction of TDA in vivo is mainly occurred in blood and contributes to be the hydrolysis of plasma esterase to ester bond, as well as the glucosylation reaction.