奎宁环, Quinuclidine

氧化铼(VII), Rhenium(VII) oxide

铑碳, Rhodium,5% on carbon

辛酸铑(II)二聚物, Rhodium(II) Octanoate Dimer

蔷薇酸, Rosolic acid

硝酸铷, Rubidium nitrate

钌,5%负载于活性碳粉末, Ruthenium,5% on activated carbon powder

亚硝酰硝酸钌(III)溶液, Ruthenium(III) nitrosylnitrate solution

沙丁胺醇硫酸盐, Salbutamol hemisulfate

水合乙酸钐, Samarium(III) acetate hydrate