EntityQ6823973· pop 17· linked from 232 articlesmethylene bridgeSign in to saveany part of a molecule with the chemical formula –CH2–ConnectionscarbonylEntitythioesterEntitymethineEntitymethylene groupEntitychemistryEntityhydrogenEntityoxygenEntitycarbonEntityaluminiumEntitynitrogenEntitysulfurEntitymoleculeEntitysiliconEntityphosphorusEntityboronEntitytitaniumEntityInternational Standard Book NumberEntityarsenicEntityseleniumEntitypoloniumEntityCategoriesFunctional groups