Multiple choice Which among the following is a cell permeable dye? Calcein Carboxyfluorescein Carboxyfluorescein diacetate succinimidyl ester Eosin Reveal answer Fill a bubble to check yourself C Correct answer Explanation Carboxyfluorescein diacetate succinimidyl ester (CFDA-SE) is a cell permeable dye generally used in animal cell proliferation research.