2-嘧啶基硫代尿素, 2-Pyrimidinylthiourea

吡咯-2-甲腈, Pyrrole-2-carbonitrile

1-吡咯烷羰酰氯, 1-Pyrrolidinecarbonyl chloride

4-(3-吡咯烷基)吗啉, 4-(3-Pyrrolidinyl)morpholine

3-吡咯啉, 3-Pyrroline

栎精二水合物, Quercetin dihydrate

8-喹啉硼酸频哪醇酯, Quinoline-8-boronic acid pinacol ester

喹啉-4-甲酸, Quinoline-4-carboxylic acid

奎宁环, Quinuclidine

氯化铼(III), Rhenium(III) chloride

罗丹明B, Rhodamine B

铑, Rhodium,5% on alumina powder

氯化铑(III)溶液, Rhodium(III) chloride solution

无水氧化铑(III), Rhodium(III) oxide

孟加拉玫瑰红, Rose Bengal