Remoxipride
Repaglinide
Rescinnamine
Reserpine
Resiniferatoxin
Resmethrin
Resorcinol
Retapamulin
Reteplase
Retinal
Retinoic_acid
Retinyl_acetate
Retinyl_palmitate
Rhamnetin
Rhamnose
Rhaponticin
Rhein_(molecule)
Rhenium(IV)_oxide
Rhenium(VII)_oxide
Rhenium(VII)_sulfide
Rhenium
Rhenium_pentachloride
Rhenium_trichloride
Rhenium_trioxide
Rheum_palmatum
Rhodamine
Rhodamine_B
Rhodanine
Rhodinol
Rhodium(II)_acetate
Rhodium(III)_chloride
Rhodium(III)_oxide
Rhodium(IV)_oxide
Rhodium
Rhodium_hexafluoride
Rhodizonic_acid
Rhyolite
Ribavirin
Ribitol
Riboflavin
Ribose
Ribose_5-phosphate
Ribostamycin
Ribulose-1,5-bisphosphate
Ribulose
Ribulose_5-phosphate
Rice_bran_oil
Ricinoleic_acid
Rifabutin
Rifampicin
Rifapentine
Rifaximin
Rilmenidine
Riluzole
Rimcazole
Rimexolone
Rimonabant
Risedronic_acid
Risperidone
Ritodrine
Ritonavir
Rituximab
Rivastigmine
Rizatriptan
Robinin
Rocuronium_bromide
Roentgenium
Rofecoxib
Rolicyclidine
Rolipram
Rolitetracycline
Ronidazole
Ropinirole
Ropivacaine
Rose_bengal
Rosmarinic_acid
Rosoxacin
Rosuvastatin
Rotenone
Rottlerin
Roxithromycin
Rubidium
Rubidium_bromide
Rubidium_carbonate
Rubidium_chloride
Rubidium_fluoride
Rubidium_hydroxide
Rubidium_iodide
Rubidium_nitrate
Rubidium_perchlorate
Rubrene
Ruthenium(III)_chloride
Ruthenium(IV)_oxide
Ruthenium
Ruthenium_hexafluoride
Ruthenium_tetroxide
Ruthenocene
Rutherfordium
Rutile
Rutin
Ryanodine
S-Adenosylmethioninamine
S-Adenosyl_methionine
S-Aminoethyl-L-cysteine
S-Methylmethionine
S-Nitrosoglutathione
Sabinene
Saccharic_acid
Saccharin
Saccharopine
Saffron_(color)
Safranal
Safranin
Safrole
Sakuranetin
Salbutamol
Salcomine
Salen_ligand
Salicin
Salicylaldehyde
Salicylaldoxime
Salicylamide
Salicylanilide
Salicylhydroxamic_acid
Salicylic_acid
Salicyluric_acid
Salmeterol
Salsalate
Salt
Salutaridine
Salvia_divinorum
Salvinorin_A
Samarium–cobalt_magnet
Samarium(II)_chloride
Samarium(III)_chloride
Samarium(III)_fluoride
Samarium(III)_oxide
Samarium(III)_sulfide
Samarium
Sand
Sandal
Sanguinarine
Saquinavir
Sarcosine
Sargramostim
Sarin
Sarsasapogenin
Saudi_Arabia
Scandium(III)_trifluoromethanesulfonate
Scandium
Scandium_chloride
Scandium_fluoride
Scandium_nitrate
Scandium_oxide
Schwartz's_reagent
Scopolamine
Scopoletin
Scorodite
Seaborgium
Sebacic_acid
Sebacoyl_chloride
Sec-Butylamine
Sec-Butyllithium-1
Sec-Butyl_acetate
Secobarbital
Secologanin
Secretin
Sedoheptulose_7-phosphate
Selegiline
Selenic_acid
Selenium_dioxide
Selenium_disulfide
Selenium_hexafluoride
Selenium_monochloride
Selenium_oxybromide
Selenium_oxydichloride
Selenium_sulfide
Selenium_tetrachloride
Selenium_tetrafluoride
Selenium_trioxide
Selenocysteine
Selenomethionine
Selenourea
Selenous_acid