吡咯-2-甲酸, Pyrrole-2-carboxylic Acid

(S)-(-)-2-吡咯烷酮-5-甲酸, (S)-(-)-2-Pyrrolidinone-5-carboxylic acid

4-(1-吡咯烷基)吡啶, 4-(1-Pyrrolidinyl)pyridine

丙酮酸, Pyruvic Acid

D-(-)-奎尼酸, D-(-)-Quinic Acid

喹啉-3-甲醛, Quinoline-3-carboxaldehyde

喹喔啉, Quinoxaline

活性蓝4, Reactive Blue 4

氧化铼(VII), Rhenium(VII) oxide

罗丹宁, Rhodanine

铑10%, 钯 1%负载于活性碳粉末, Rhodium 10%, Palladium 1% on activated carbon powder

无水氯化铑(III), Rhodium(III) chloride

玫瑰红酸二水合物, Rhodizonic acid dihydrate

乙酸铷, Rubidium acetate

氯化铷, Rubidium Chloride