855751-82-5

CAY10732 is a fluorescent probe for the detection of carbon monoxide.¹ In the presence of palladium (Pd) and carbon monoxide, CAY10732 undergoes the Pd⁰-mediated Tsuji-Trost reaction to release 2,7-dichlorofluorescein, and its fluorescence can be used to detect carbon monoxide production in vitro and in live cells. 2,7-Dichlorofluorescein displays excitation/emission maxima of 493/527 nm, respectively.

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1. Feng, S., Liu, D., Feng, W., et al. Allyl fluorescein ethers as promising fluorescent probes for carbon monoxide imaging in living cells Anal. Chem. 89(6),3754-3760(2017).