1818 &lamba; Ex/&lamba; Em (MeOH) = 549/565 nm ε = 148,000 Dark red solid soluble in ethanol, DMF or DMSO Store at 4°C C59H97ClN2O4 MW: 933.88 [41085-99-8] &lamba; Ex/&lamba; Em (MeOH) = 549/565 nm ExEm ε = 148,000 Dark red solid soluble in ethanol, DMF or DMSO Store at 4°C C59H97ClN2O4 599724 MW: 933.88 [41085-99-8]