Propyl gallate is an anti-fade reagent in fluorescence microscopy to reduce photobleaching of fluorescent probes such as rhodamine and fluorescein. An antioxidant which exhibits antimicrobial activity. Has been reported to be an effective antioxidant-based hepatop在荧光显微术中用作抗淬灭剂,以减少罗丹明和荧光素等荧光探针的光漂白。