1,8-辛二硫醇, 1,8-Octanedithiol

八苯基环四硅氧烷, Octaphenylcyclotetrasiloxane

3-辛烯-2-酮, 3-Octen-2-one

对羟基苯甲酸正辛酯, n-Octyl 4-Hydroxybenzoate

2-正辛基噻吩, 2-n-Octylthiophene

油红 O, Oil Red O

无水乳清酸, Orotic acid

2-氧杂-6-氮杂螺[3.4]辛烷, 2-Oxa-6-azaspiro[3.4]octane

草酸二水合物, Oxalic acid dihydrate

氧杂环丁烷-3-羧酸, Oxetane-3-carboxylic acid