Bisbenzimide

2'- (4- ethoxyphenyl ) -5 - (4-methyl -1-piperazinyl ) -2,5 '- bi-1H -benzimidazole trihydrochloride

Dark yellow powder

Fixed

Soluble in water (20 mg / ml)

Risk

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The fluorescent dye Hoechst 33342 is used in fluorescence microscopy to stain DNA. Hoechst 33342 is excited by UV light at a wavelength of about 350 nm and emits light in the spectrum from blue to cyan. Since Hoechst 33342 interacts with DNA, it acts potentially carcinogenic and mutagenic.