2,2'-dipyridyl

2,2′-dipyridyl

[¦tü ¦tü‚prīm dī′pir·ə·dəl]
(organic chemistry)
C10H8N2 A crystalline substance soluble in organic solvents; melting point is 69.7°C; used as a reagent for the determination of iron. Also known as 2,2′-bipyridine.
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5% (w/w) solution and passing over a bed of silica gel until the level of impurities as titrated by n-butyllithium (using 2,2'-dipyridyl indicator, ethanol 99+%) was less than 2 ppm.
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