&lamba; Ex/&lamba; Em= 496/520 nm Orange-red solid soluble in DMSO Store at room temperature and protect from light C20H15ClN2O3 MW: 366.80 [13558-31-1] &lamba; Ex/&lamba; Em= 496/520 nm ExEm Orange-red solid soluble in DMSO Store at room temperature and protect from light C20H15ClN2O3 201523 MW: 366.80 [13558-31-1]