Description_x000D_ General description_x000D_ Resorufin pentyl ether is an analog of resazurin. Resorufin is a redox probe which is colorless and non-fluorescent in its reduced state. On oxidation, it fluoresces red. Resorufin is used widely as an indicator in microbiological media. It can be used to differentiate between actively metabolizing cells and inactive or dead cells._x000D_ Application_x000D_ Resorufin pentyl ether has been used as a substrate to study the effects of Kaempferia parviflora extract on mouse hepatic cytochrome P450 enzymes._x000D_ Packaging_x000D_ 1, 5, 10 mg in glass bottle_x000D_ Biochem/physiol Actions_x000D_ Fluorimetric substrate for cytochrome P450 linked enzymes, CYP2B and CYP2B4.