Tags: Chemical Compound, Chemical Substance.
Seminaphtharhodafluor or SNARF is a fluorescent dye that changes color with pH.It can be used to construct optical biosensors that use enzymes that change pH.The absorption peak of the derivative carboxy-SNARF at pH 6.0 is at wavelength (515 and) 550 nm while that at pH 9.0 is at 575 nm.[citation needed]The emission peak of carboxy-SNARF at pH 6.0 is at wavelength 585 nm while that at pH 9.0 is at 640 nm.SNARF-1 can serve as a substrate for the MRP1 (multidrug resistance-associated protein-1) drug transporter to measure the activity of the MRP1 transporter.
