| 33440-05-0 | r7-13-Corticotropin |
| 57184-22-2 | R 761 | C45H63 N3 O12 |
| 110230-95-0 | RS 029 | C13H16 N6 O6 |
| 24359-63-5 | Rose Bengal Sodium | C20H4 Cl4 I4 O5 . 2 Na |
| 83395-21-5 | Ridazolol | C15H18Cl2N4O3 |
| 53757-35-0 | R-(R*,R*)]-β-[2-(diMethylaMino)propyl]-α-ethyl-β-phenylbenzeneethanol Acetate (Ester) Hydroch | C23H32ClNO2 |
| 127497-36-3 | rubber elongation factor |
| 145386-11-4 | RB 88724 | C10H10N2O5 |
| 161735-79-1 | Rasagiline mesylate | C12H13N.CH4O3S |
| 76675-97-3 | Resocortol | C22H32 O4 |
| 163796-60-9 | Receptor, interferon a/b (human isoform p40 precursor) (9CI) |
| 138820-58-3 | RNA15 protein |
| 128345-62-0 | Ranitidinebismuthcitrate | C13H22N4O3S•C6H5BiO7 |
| 108916-86-5 | Rutin sulfate | C27H29NaO19S |
| 7789-39-1 | Rubidium bromide | BrRb |
| 68152-55-6 | Rosin, fumarated, polymer with ethylene glycol |
| 107898-40-8 | rudimentary locus gene product (Drosophila) |
| 138233-18-8 | r-Cycloawaodorin | C36H60O24 |
| 78950-28-4 | Ruhemann's purple |
| 18426-20-5 | R(-)-PROPYLNORAPOMORPHINE HCL | C19H21 N O2 |
| 25822-54-2 | Rodrun LC 5000 |
| 196815-59-5 | Rhenocure S/G |
| 179987-30-5 | Ryanotoxin |
| 51695-88-6 | Radium-236 |
| 150812-13-8 | Retigabine Dihydrochloride | C16H18FN3O2.2HCl |
| 77749-49-6 | RX-RA 69 | C21H25N7OS |
| 145892-07-5 | ragweed antigen K |
| 132041-94-2 | R 487 | C39H56 N8 O10 S |
| 132875-61-7 | REMIFENTANIL | C20H28 N2 O5 |
| 49697-38-3 | RIMEXOLONE (100 MG) | C24H34O3 |
| 14391-28-7 | Rhenium185 | Re |
| 71850-81-2 | RICINOLEAMIDOPROPYL BETAINE | C25H48 N2 O4 |
| 59232-88-1 | rifamycin Q | C39H48 N2 O12 S |
| 104581-79-5 | Ristomycin A aglycone,22,31-dichloro-7-demethyl-19-deoxy- (9CI) | C59H47 Cl2 N7 O18 |
| 3576-73-6 | RS 86 | C11H18 N2 O2 |
| 85854-36-0 | Reactive yellow 77 |
| 130772-99-5 | R 7-45 | C18H18 As2 N12 |
| 13746-66-2 | Red prussiate | K3Fe.(CN)6 |
| 83-60-3 | Reserpic | C22H28 N2 O5 |
| 8063-57-8 | Reactive Violet 2 | C44H31Cl2Cu2N13Na6O23S6+6 |
| 3567-00-8 | rubrofusarin | C15H12 O5 |
| 115470-17-2 | ruvA protein |
| 100333-50-4 | Rodilemid | C25H41Ca2N3Na2O24S |
| 9029-15-6 | Reductase,D-proline |
| 149926-91-0 | revatropate | C19H27NO4S |
| 2147-34-4 | r-Naphthocoumarin | C13H8O2 |
| 15306-82-8 | Rhodate(2-),aquapentachloro-, potassium (1:2), (OC-6-21)- | Cl5H2 O Rh . 2 K |
| 57538-50-8 | RU 21886 |
| 64313-94-6 | RU 18760 | C23H34 O6 |
| 102648-08-8 | RP 6237 (9CI) |
| 25635-22-7 | RARECHEM AL BI 0482 | C12H11NO2 |
| 9029-19-0 | Reductase,protein disulfide (reduced nicotinamide adenine dinucleotide (phosphate)) |
| 125580-46-3 | ribosomal protein L37a | C450H753 N137 O121 S8 |
| 149437-06-9 | R 402B |
| 80449-06-5 | RSA I |
| 64339-45-3 | Relaxin (swine-Areduced) (9CI) | C102H184 N34 O30 S5 |
| 186692-46-6 | ROSCOVITINE | C19H26N6O |
| 103528-75-2 | Rhizoxin,2,3-deepoxy-2,3-didehydro- | C35H47 N O8 |
| 94415-03-9 | R 836 | C13H19 N5 S |
| 86229-97-2 | RA VII | C41H50 N6 O9 |
| 130463-94-4 | Rynatan | C277H264Cl5N15O102 |
| 1701-96-8 | r-Spiroxazone | C10H11N3O2 |
| 103528-77-4 | Rhizoxin,2,3:11,12-dideepoxy-2,3,11,12-tetradehydro- | C35H47 N O7 |
| 54197-31-8 | R(+)-IAA-94 | C17H18 Cl2 O4 |
| 124448-55-1 | Reactive Blue 198 | C41H30Cl4N14O14S4.4Na |
| 20320-81-4 | RUTARIN | C20H24O10 |
| 26909-33-1 | rugulovasine A | C16H16 N2 O2 |
| 216655-63-9 | Reactive Yellow K-RN |
| 17095-24-8 | REACTIVE BLACK 5 | C26H25N5Na4O19S6 |
| 82197-74-8 | RC-18 |
| 98873-75-7 | rupestric acid | C15H22 O2 |
| 115536-98-6 | Ryoto Sugar Ester ER 190 |
| 146145-21-3 | RTI 121 | C18H24 I N O2 |
| 12225-67-1 | REACTIVE BROWN 10 | C40H18 Cl4 Cr N12 O12 S2 . H . 2 Na |
| 14807-05-7 | Rhamnulose | C6H12 O5 |
| 141782-67-4 | RTI 82 | C23H24 Cl I N4 O2 |
| 62295-71-0 | Rifamycin XIV, 1,4-didehydro-1-deoxy-1,4-dihydro-5-methyl-1-oxo- | C43H56N4O11 |
| 120615-22-7 | ribavirin 5'-sulfamate | C8H13 N5 O7 S |
| 12226-08-3 | Reactive Red 11 | C21H9I2N3Na6O9S2 |
| 85746-53-8 | Reocap E |
| 1995-72-8 | Ro 5-6910 |
| 107231-52-7 | Reactive yellow 152 |
| 64536-04-5 | Retinol, acetate,labeled with tritium (9CI) | C22H32 O2 |
| 12166-20-0 | RUTHENIUM(IV) SULFIDE, 99.9% | RuS2 |
| 49727-33-5 | Rhodium(1+), bis(2,2-bipyridine-N,N)dichloro-, (OC-6-22)-, perchlorate | C20H16Cl3N4O4Rh |
| 149315-82-2 | Reactive blue 235 |
| 12225-86-4 | REACTIVE ORANGE 14 | C19H12Cl2N8O9S2 |
| 140876-15-9 | Reactive Yellow 176 | C28H20ClN9O16.4Na |
| 62746-84-3 | ribose-5-triphosphate | C5H13 O14 P3 |
| 10025-66-8 | Radium chloride | Cl2Ra |
| 58735-64-1 | ROQUEFORTINE C | C22H23 N5 O2 |
| 26342-66-5 | rhodojaponin III | C20H32 O6 |
| 140876-14-8 | Reactive yellow 168 |
| 119742-13-1 | ROXINDOLE MESYLATE | C24H30N2O4S |
| 132539-07-2 | Remifentanil Hydrochloride | C20H28 N2 O5 . Cl H |
| 9001-98-3 | Rennin |
| 10238-70-7 | Rifazine | C43H49 N3 O11 |
| 2461-66-7 | Riboflavin, cyclic2',5'-(hydrogen phosphate) (9CI) | C17H19 N4 O8 P |
| 12239-45-1 | Reactive Violet 1 | C25H17Cl2Cu2N7O14S4 |
| 5016-18-2 | reumycin | C6H5 N5 O2 |