ORGANIC CHEMISTRY Chapter 13 The greater the number of conjugated multiple bonds a compound contains, the longer will be the wavelengt at which the compound absorbs light max nm 217219 254 256 258 290 497 β Carotene(胡萝卜素) Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 13 The greater the number of conjugated multiple bonds a compound contains, the longer will be the wavelength at which the compound absorbs light. 497 β-Carotene (β-胡萝卜素) 217 258 290 256 O λ 219 254 max (nm)