| 145137-68-4 | RecG protein |
| 135727-57-0 | ranatensin M | C48H64 N14 O8 S |
| 148813-45-0 | rec7 protein |
| 84625-48-9 | Rhamnus frangula, ext. |
| 138749-63-0 | rubroflavin | C9H11 N3 O3 S2 |
| 175097-29-7 | Rhopaloic acid A |
| 128606-47-3 | RPR 5 | C10H19 O5 P S |
| 84-26-4 | Rutaecarpine | C18H13N3O |
| 147995-53-7 | RIM1 protein |
| 3763-55-1 | RUBIXANTHIN | C40H56 O |
| 100234-70-6 | resorcinomycin A | C14H20 N4 O5 |
| 22541-36-2 | Radium, ion (Ra2+) | Ra |
| 114301-25-6 | Rhizocticin A | C11H22 N5 O6 P |
| 148563-16-0 | R-ALBUTEROL HYDROCHLORIDE | C13H21NO3 |
| 89073-20-1 | Renew (dental material) |
| 12769-04-9 | Reactive orange 46 | C34H59N7O12 |
| 131478-95-0 | ring-opened 7-(2-hydroxyethyl)guanine | C7H11 N5 O3 |
| 133376-41-7 | Rogiolenyne C |
| 13465-52-6 | ruthenium tetrachloride | Cl4Ru |
| 3086-44-0 | RHODOL | C20H13 N O4 |
| 70025-25-1 | rosin, polymer with p-tert-butylphenol, formaldehyde,glycerol and pentaerythritol | (C10H14O·C5H12O4·C3H8O3·CH2O·W99)x |
| 5560-77-0 | Rotoxamine | C16H19 Cl N2 O |
| 57444-62-9 | RESINIFERATOXIN | C37H40 O9 |
| 86831-54-1 | RHODIOSIN | C27H30 O16 |
| 75030-18-1 | Reactive Blue 81 | C25H17 Cl2 N7 O10 S3 . 3 Na |
| 147097-45-8 | ribosomal protein CL15 |
| 161935-14-4 | Rifater | C54H70N10O14 |
| 77287-05-9 | RIOPROSTIL | C21H38 O4 |
| 51093-55-1 | ROSEOFLAVIN | C18H23 N5 O6 |
| 90590-96-8 | Ruthenium, bis(eta5-2,4-cyclopentadien-1-yl)bis(mu-nitrosyl-N:N)di- | C10H10N2O2Ru2 |
| 101013-01-8 | Resin acids and Rosinacids, tall-oil, fumarated, ketene deriv. |
| 158675-78-6 | R 407A |
| 115762-17-9 | Ruzadolane | C18H19 F2 N5 S |
| 6031-86-3 | Racemethorphan hydrobromide | C18H25 N O . Br H |
| 1314-28-9 | RHENIUM (VI) OXIDE | O3Re |
| 90-83-5 | Racephedrine | C10H15NO |
| 9026-12-4 | RIBONUCLEASE T1 |
| 141-22-0 | RICINOLEIC ACID | C18H34O3 |
| 8022-63-7 | Ringer's lactate | C3H6CaCl4KNa2O3 |
| 12671-20-4 | RNA (Saccharomycescerevisiae tRNATrp I) (9CI) |
| 12236-85-0 | Reactive Blue 14 | Unspecified |
| 12731-76-9 | Reactive yellow 56 |
| 142689-34-7 | rotihibin A | C35H63 N11 O13 |
| 162011-90-7 | Rofecoxib | C17H14O4S |
| 1404-59-7 | Rutamycin | C44H72 O11 |
| 22710-42-5 | Rhodium(1+),bis(2,2'-bipyridine-kN1,kN1')dichloro-, chloride (1:1),(OC-6-22)- | C20H16 Cl2 N4 Rh . Cl |
| 18976-74-4 | Reactive Yellow 14 | C20H21 Cl N4 O11 S3 . 2 Na |
| 34444-28-5 | Rubinin | C20H21ClO6 |
| 82120-04-5 | Relaxin (swine B-32-chain reduced) |
| 70686-88-3 | ribonuclease S-peptide (1-14), 12-(beta-(3-pyridyl)-Ala)- | C72H113N21O23S |
| 12226-04-9 | REACTIVEREDNO5 | C24H16Cl2N6 |
| 129791-92-0 | Rifalazil | C51H64 N4 O13 |
| 143558-00-3 | rocuronium | C32H53N2O4 |
| 18909-68-7 | RUBIDIUM TETRAFLUOROBORATE | BF4Rb |
| 96726-28-2 | Reactive Yellow 162 |
| 14883-62-6 | Rhodium(1+),[N,N'-bis(2-aminoethyl)-1,2-ethanediamine-N,N',N'',N''']dichloro-, chloride,[OC-6-22-(R*,R*)]- (9CI) | C6H18 Cl2 N4 Rh . Cl |
| 12225-98-8 | Reactive Orange 29 | C19H15 Br N4 O7 S2 . 2 Na |
| 17306-46-6 | Rhoifolin | C27H30O14 |
| 36791-04-5 | Ribavirin | C8H12N4O5 |
| 199685-57-9 | Recombinant human soluble p55 tumour necrosis factor receptor |
| 73337-95-8 | Rewoteric AMVSF | C15H29N2NaO4 |
| 129651-47-4 | Reactive orange 94 |
| 90-74-4 | RUTINOSE | C12H22 O10 |
| 7784-00-1 | Rhenium silver tetraoxide | AgO4Re |
| 37933-92-9 | red pigment-concentrating hormone | C45H59 N11 O11 |
| 55466-29-0 | ROSEOTOXIN | C30H49 N5 O7 |
| 5323-95-5 | RICINOLEIC ACID SODIUM SALT | C18H34 O3 . Na |
| 26652-09-5 | RITODRINE | C17H21NO3 |
| 9001-99-4 | Ribonuclease A | C9H14N4O3 |
| 15765-86-3 | Rubidium, isotope ofmass 84 | Rb |
| 106564-50-5 | Rhodium(1+), bis(2,2-bipyridine-N,N)diiodo-, (OC-6-22)-, perchlorate | C20H16ClI2N4O4Rh |
| 135749-24-5 | Rarical |
| 151233-05-5 | respinomycin B | C35H43 N O14 |
| 77573-69-4 | rubigine tirel | C2H7F2NO4 |
| 161755-82-4 | Relaxin (guinea pig)(9CI) | C267H453 N77 O80 S8 |
| 145137-45-7 | RAD57 protein |
| 982-17-2 | RU 3117 |
| 115682-09-2 | Reactive Blue 231 |
| 7205-16-5 | ricid | C9H13 O3 P S |
| 121617-10-5 | Rosin, polymd., polymer with maleic anhydride, phthalic anhydride, tall oil, tetrahydroabietyl alc. and trimethylolpropane |
| 54324-72-0 | Rhodium(1+), (2,2-bipyridine-N,N)((1,2,5,6-eta)-1,5-cyclooctadiene)-, chloride | C18H20ClN2Rh- |
| 26308-28-1 | Ripazepam | C15H16 N4 O |
| 117976-89-3 | Rabeprazole | C18H21N3O3S |
| 194100-83-9 | rhTSH |
| 93230-16-1 | recF protein |
| 61789-44-4 | RICINOLEIC ACID | C18H34O3 |
| 124884-30-6 | Ramoplanin A 1 (peptidemoiety), 1-[N2-[(2Z,4E)-8-methyl-1-oxo-2,4-nonadienyl]-L-asparagine]-11-[(2S)-2-[4-(a-D-mannopyranosyloxy)phenyl]glycine]-(9CI) | C114H146 Cl N21 O35 |
| 13269-35-7 | R-(+)-Hyoscyamine | C17H23 N O3 |
| 73857-20-2 | RANITIDINE-N-OXIDE | C13H22 N4 O4 S |
| 203200-22-0 | RK-F 1010 |
| 8050-28-0 | Rosin, maleated |
| 142012-12-2 | Ru-metro | C12H15 Cl2 N3 O3 Ru |
| 39277-98-0 | Rizokton |
| 70984-30-4 | Rennin,pseudo- |
| 142978-85-6 | Ra-reactive factor P28 |
| 72093-17-5 | Resibufogenin 3-sulfate |
| 37577-24-5 | R(-)-FENFLURAMINE HCL | C12H16 F3 N |
| 36285-11-7 | Raucaffrinoline |
| 17592-97-1 | RAC 109 | C20H28 N2 O2 |
| 90895-85-5 | Ronactolol | C20H26 N2 O4 |