1-Chloro-9,10-bis(phenylethynyl)anthracene is a fluorescent dye used in lightsticks. It emits yellow-green light, used in 30-minute high-intensity Cyalume sticks.
See also 9,10-Bis(phenylethynyl)anthracene 2-Chloro-9,10-bis(phenylethynyl)anthracene
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