喹啉-8-磺酸, Quinoline-8-sulfonic acid

盐酸雷尼替丁, Ranitidine Hydrochloride

氧化铼(VI), Rhenium(VI) oxide

罗丹名 6G 高氯酸盐, Rhodamine 6G perchlorate

5% 铑负载于碳浆料, Rhodium,5% on activated carbon paste

氯化铑(III)水合物, Rhodium(III) chloride hydrate

硫酸铑(III)四水合物, Rhodium(III) sulfate tetrahydrate

蔷薇酸, Rosolic acid

氯化铷, Rubidium Chloride

硫酸铷, Rubidium sulfate

5% 钌 负载于氧化铝粉, Ruthenium,5% on alumina powder

氯氧钌(III), Ruthenium(III) chloride oxide

亚硝酰硫酸钌(III), Ruthenium(III) nitrosylsulfate

硫化钌(IV), Ruthenium(IV) sulfide

水杨酰胺, Salicylamide