Rhodamine 123 from Biotium, Inc.

Rhodamine 123 is a popular green fluorescent mitochondrial dye that stains mitochondria in living cells in a membrane potential-dependent fashion. It is widely used in flow cytometry studies involving mitochondrial membrane potential. Please also see Dihydrorhodamine 123 and its HCl salt. 

• λ_Ex/λ_Em(MeOH) = 505/534 nm
• ε (505 nm, MeOH) = 97,000
• Orange red solid soluble in DMSO or DMF
• Store at 4°C and protect from light, especially in solution
• C₂₁H₁₇ClN₂O₃
• MW: 381
• [62669-70-9]