| 1501-84-4 | Rimantadine hydrochloride | C12H22ClN |
| 74752-07-1 | Recainam | C15H25 N3 O . Cl H |
| 14487-05-9 | Rifamycin O | C39H47NO14 |
| 58559-78-7 | Reihlen's green |
| 266359-83-5 | Repertaxin | C14H21 N O3 S |
| 61901-80-2 | Reactive orange 64 | C24H11ClF2N5Na3O10S3 |
| 66169-93-5 | RUBIDIUM 2,4-PENTANEDIONATE, HYDRATE | C5H7 O2 . Rb |
| 132966-19-9 | ribonucleoprotein CP31 |
| 37275-91-5 | Reofos 110 |
| 94162-23-9 | renin inhibitory peptide, statine | C54H77 N13 O9 |
| 98769-84-7 | Reboxetine mesylate | C19H23NO3.CH4O3S |
| 137476-71-2 | rhapontisterone | C27H44 O8 |
| 41753-44-0 | r-Amiradienol |
| 67859-71-6 | Rhodium phosphate | H3O4 P . Rh |
| 116907-13-2 | risotilide | C15H27 N3 O4 S2 . Cl H |
| 12236-86-1 | Reactive Turquoise Blue Kn-G | Unspecified |
| 62869-69-6 | R(-)-QUINUCLIDINYL BENZILATE | C21H23NO3 |
| 37290-95-2 | Racemase,phenylalanine (adenosine triphosphate-hydrolyzing) |
| 145202-66-0 | Rizatriptan benzoate | C15H19N5 |
| 146704-56-5 | ribonucleoprotein cp29B |
| 122312-55-4 | Ranolazine | C28H60 Al14 O71 S7 |
| 7440-18-8 | Ruthenium | Ru |
| 63142-71-2 | ribavirin 5'-triphosphate | C8H15 N4 O14 P3 |
| 144515-70-8 | Receptor, neurotrophin3 (swine clone pFL19 gene trkC protein moiety reduced) (9CI) |
| 80508-23-2 | rac N'-Nitrosonornicotine | C9H11N3O |
| 60048-94-4 | r-chloro- |
| 90106-13-1 | Rauwolfia serpentina, ext. |
| 133086-78-9 | rhynchotechol | C17H14 O6 |
| 12135-42-1 | ruthenium trihydroxide | H3O3 Ru |
| 60108-67-0 | RAD 244 | C15H24 N2 O |
| 20788-07-2 | Resorantel | C13H10BrNO3 |
| 10453-86-8 | RESMETHRIN | C22H26 O3 |
| 8050-33-7 | Resin acids and Rosin acids, ethoxylated |
| 53026-87-2 | rhodergon |
| 11035-03-3 | Rumalon | C6H8N5+ |
| 93738-40-0 | Ralitoline | C13H13 Cl N2 O2 S |
| 96497-67-5 | Rodorubicin | C48H64 N2 O17 |
| 72559-06-9 | Rifabutin | C46H62N4O11 |
| 480-54-6 | RETRORSINE | C18H25 N O6 |
| 61790-52-1 | resilin |
| 13324-20-4 | REACTIVE BLUE 4 | C23H14Cl2N6O8S2 |
| 108657-25-6 | roxburic acid | C30H48 O6 |
| 40034-42-2 | rosoxacin | C17H14 N2 O3 |
| 112989-02-3 | rac-3-Octadecanamido-2-Ethoxypropan-1-ol Phosphocholine | C28H59 N2 O6 P |
| 66357-59-3 | Ranitidine Hydrochloride | C13H22N4O3S.HCl |
| 2934-97-6 | ROTUNDINUM | C21H25NO4 |
| 3615-24-5 | Ramifenazone | C14H19N3O |
| 65997-12-8 | Resin acids and Rosin acids, polymd., esters with pentaerythritol |
| 142179-00-8 | RHODAMINE B OCTADECYL ESTER PERCHLORATE | C46 H67 N2 O3 . Cl O4 |
| 478-43-3 | Rhein | C15H8O6 |
| 75602-95-8 | Rochem oil spill remover (wsa) |
| 129893-10-3 | Residues (petroleum),vacuum, hydrocracked, middle distillate fraction |
| 91833-77-1 | Rocastine | C13H19 N3 O S |
| 101910-24-1 | REV 5901 | C22H25NO2 |
| 12220-12-1 | Reactive Orange 122 |
| 147388-34-9 | rhiA protein |
| 13597-52-9 | Rubidium tungstate | O4Rb2W-6 |
| 103745-26-2 | Rhizoxin,2,3:5b,7-dideepoxy-2,3-didehydro-5b-ethoxy-7-hydroxy- (9CI) | C37H53 N O9 |
| 12769-03-8 | Reactive orange 45 |
| 27388-89-2 | Radium chloride(224RaCl2) (8CI,9CI) | Cl2Ra |
| 107028-81-9 | Reactive blue 204 |
| 117086-68-7 | Ricasetron | C19H27 N3 O |
| 57444-60-7 | resiniferonol | C20H28 O6 |
| 29563-13-1 | RGD peptidesRGE-H |
| 64295-83-6 | Reductase, riboflavinmononucleotide (reduced nicotinamide adenine dinucleotide (phosphate)) |
| 13983-13-6 | RIFAMPIN QUINONE (50 MG) | C43H56N4O12 |
| 144034-80-0 | Rizatriptan | C15H19N5 |
| 12677-16-6 | Reactive Blue 74 | C28H25 Cl N6 O9 S2 . 2 Na |
| 61969-35-5 | Reactive Yellow 57 |
| 13569-65-8 | Rhodium chloride trihydrate | RhCl3.3H2O |
| 83-88-5 | Riboflavin | C17H20N4O6 |
| 90-19-7 | Rhamnetin | C16H12 O7 |
| 95847-87-3 | Revospirone | C18H21 N5 O3 S |
| 7681-76-7 | RONIDAZOLE | C6H8N4O4 |
| 55834-48-5 | Rubinol R 124 |
| 148349-90-0 | ribosomal protein YL16 |
| 80063-35-0 | rat gastrin C-terminal pentagastrin | C34H46 N6 O10 S |
| 80716-13-8 | RA-56 | C14H16I2N4O2 |
| 146991-25-5 | rab28 protein |
| 144114-21-6 | Retropepsin |
| 32666-97-0 | RONITE | C9H17 N O S |
| 30850-72-7 | R 2105 |
| 7440-14-4 | radium | Ra |
| 13569-63-6 | RHENIUM(III) CHLORIDE | Cl3Re |
| 82-12-2 | rufigallol | C14H8O8 |
| 103528-78-5 | Rhizoxin,2,3:11,12-dideepoxy-2,3,11,12-tetradehydro-17-O-demethyl- | C34H45 N O7 |
| 15684-00-1 | rhenium pentacarbonyl | C5O5 Re |
| 102583-56-2 | Roseocitrin B (9CI) |
| 12772-57-5 | RADICICOL | C18H17ClO6 |
| 80214-83-1 | Roxithromycin | C41H76N2O15 |
| 125263-65-2 | Rubiprasin A | C32H52 O5 |
| 119302-91-9 | Rocuronium bromide | C32H53N2O4.Br |
| 81-88-9 | Rhodamine B | C28H31N2O3.Cl |
| 92206-54-7 | Rotigotine | C19H25NOS |
| 147338-58-7 | ribosomal protein S15a |
| 14284-93-6 | Ruthenium acetylacetonate | C15H21O6Ru |
| 9014-24-8 | RNA POLYMERASE |
| 84861-95-0 | Rokopol TD |
| 751-97-3 | ROLITETRACYCLINE | C27H33 N3 O8 |
| 12236-77-0 | Reactive Black 1 |