MQAE from Biotium, Inc.

MQAE (N-(Ethoxycarbonylmethyl)-6-methoxyquinolinium bromide) is an improved chloride indicator that has greater sensitivity to chloride (K_sv= 200M^-1) than SPQ (K_sv=118 M^-1) and higher fluorescence quantum yield. The ester group of MQAE may slowly hydrolyze inside cells, resulting in a change in its fluorescence response.  

• White solid soluble in water and DMSO
• Store at 4°C and protect from light, especially in solution
• λEx/λEm= 350/460nm
• ε (344 nm, H₂O) = 2,800
• C₁₄H₁₆BrNO₃
• MW: 326.19
• [162558-52-3]