Complex sentence: TCPO, or bis 2,4,6 (trichlorophenyl) oxalate is the main chemical in glow sticks.it is carcinogenic, so it should be handled with care.
Split into simpler sentences: TCPO, or bis-2,4,6-(trichlorophenyl) oxalate is the main chemical in glow sticks. It is carcinogenic, so it should be handled with care.