| 127664-25-9 | Relaxin (Macacamulatta-A reduced) (9CI) | C117H194 N32 O32 S5 |
| 71872-76-9 | REACTIVE BLUE 160 | C29H35Cl2N5Na2O9S2 |
| 9040-57-7 | RNA Reductase |
| 11016-72-1 | Rubomycin |
| 84954-93-8 | ROSARIN | C20H28O10 |
| 15492-38-3 | Rhodium triiodide | RhI3 |
| 54187-44-9 | Rilmenidine Impurity A | C10H18N2O2 |
| 186406-71-3 | rs1-Casomorphin (human) |
| 84623-02-9 | Rhamnuscathartica, ext. |
| 73681-52-4 | Rokanol PL 4 |
| 11052-94-1 | ROSEOLIC ACID | C24H22 O9 |
| 102696-25-3 | RP 18887 (9CI) |
| 12225-74-0 | REACTIVE GREEN 5 |
| 62669-66-3 | RHODAMINE 19 PERCHLORATE | C26H27N2O3.ClO4 |
| 12127-42-3 | rhodium carbide | CRh |
| 474877-20-8 | rNIF |
| 17001-79-5 | ruthenium disodium tetraoxide | Na. 1/2 O4 Ru |
| 12137-42-7 | rhenium dioxide peroxide | O4Re |
| 596087-09-1 | Rimostil |
| 105313-65-3 | ruthenium chloride-DMSO(2)-4-nitroimidazole(2) | C10H18 Cl2 N6 O6 Ru S2 |
| 156654-48-7 | ROR-C receptor |
| 2829-19-8 | Rolicyprine | C14H16 N2 O2 |
| 13981-53-8 | Radium-225 | Ra |
| 80912-86-3 | R 49399 |
| 150206-04-5 | rim 1 | C51H50 N6 O8 S2 |
| 90319-83-8 | RAP 2354 |
| 16653-52-4 | ROCKOGENIN | C27H44 O4 |
| 129898-77-7 | Reactive Yellow 160 |
| 161099-61-2 | Relaxin (baboon-Areduced) (9CI) | C116H192 N32 O33 S4 |
| 139237-89-1 | R-9,T-10-DIHYDROXY-T-11,12-OXY-9,10,11,12-TETRAHYDROBENZO[C]CHRYSENE | C22H16 O3 |
| 72509-99-0 | Reactive yellow 125 |
| 139638-68-9 | Realon |
| 147921-90-2 | repandiol | C10H10 O4 |
| 13982-13-3 | Rubidium87 | Rb |
| 29475-51-2 | ruthenium - ethanedioic acid (1:3) | C6O12 Ru . 3 K |
| 12225-43-3 | Reactive blue 26 |
| 81112-43-8 | retinyl bromoacetate | C22H31 Br O2 |
| 98990-12-6 | Raunescinone |
| 150226-33-8 | Rosin, polymer withformaldehyde, magnesium oxide complex |
| 200879-89-6 | Rhoipteleside B |
| 63959-03-5 | R 2768 |
| 500-65-2 | rhapontigenin | C15H14O4 |
| 57608-80-7 | Revistin |
| 18002-97-6 | Rhyncociline |
| 71653-63-9 | Riodipine | C18H19 F2 N O5 |
| 69421-37-0 | R,R-Fenoterol | C17H21NO4 |
| 12770-40-0 | Requinomycin (9CI) | C40H54 N2 O16 |
| 68082-96-2 | Rosin, maleated, polymer with p-tert-butylphenol, formaldehyde and pentaerythritol |
| 37256-87-4 | Reductase,cytidine diphospho-4-keto-6-deoxy-D-glucose |
| 128906-89-8 | Royalisin | C240H372 N66 O72 S6 |
| 106152-22-1 | Reactive red 201 |
| 828271-96-1 | Ro 27-2441 |
| 68247-67-6 | Rubomycin B1 |
| 132151-82-7 | Ranamargarin | C70H110N20O22S |
| 61951-85-7 | Reactive Yellow 84 | C57H38I2N14Na6O20S6 |
| 147098-18-8 | Rosuvastatin sodium | C22H27FN3NaO6S |
| 101027-54-7 | Rhodamine 800 | C26H26ClN3O5 |
| 54010-71-8 | ROBISON ESTER MONOSODIUM SALT | C6H13 O9 P . Na |
| 148891-53-6 | RP 48497 (Eszopiclone Impurity C) | C11H7 Cl N4 O |
| 129871-02-9 | Rumex crispus, tincture |
| 96343-30-5 | Ruthenocene,[[(carboxymethyl)amino]carbonyl]- |
| 131396-76-4 | Rias |
| 206067-69-8 | RADAEX |
| 36441-92-6 | r-D-Tagatofuranose |
| 88151-44-4 | Ribasidine |
| 97466-28-9 | Ro 15-1234 | C18H18N8O8S3 |
| 12270-84-7 | Reactive red 76 |
| 124222-18-0 | Residues, precious metal-refining |
| 72979-85-2 | Reactive red 133 |
| 196216-83-8 | RB (explosive) |
| 68833-11-4 | Rubradirin B | C40H33N3O15 |
| 71348-36-2 | rhamnopyranosyl-(1-2)-rhamnopyranoside-(1-methyl ether) | C13H24O9 |
| 156289-30-4 | RNA 3 movement protein |
| 13566-05-7 | RUBIDIUM VANADATE ORTHO | O3RbV-5 |
| 163149-26-6 | Rosin, polymer withmaleic anhydride and tall oil, calcium zinc salts |
| 87315-10-4 | r (Saccharomyces cerevisiae gene MFr2) |
| 135690-47-0 | RANATACHYKININ A | C60H92N16O15S |
| 86003-82-9 | Ro 22-4679 |
| 287714-41-4 | Rosuvastatin | C22H28FN3O6S |
| 56833-66-0 | RNC |
| 84681-71-0 | Rape oil, hydrogenated |
| 2679-65-4 | ROBTEIN | C15H12 O6 |
| 37250-17-2 | Reductase,glyoxylate (reduced nicotinamide adenine dinucleotide phosphate) |
| 92202-14-7 | Rosin,fumarated, reaction products with glycerol and pentaerythritol |
| 110882-86-5 | Ristomycin A aglycone,42-O-(6-O-acetyl-a-D-mannopyranosyl)-5,31-dichloro-7-demethyl-64-O-demethyl-19-deoxy-56-O-[2-deoxy-2-[(10-methyl-1-oxoundecyl)amino]-b-D-glucopyranuronosyl]-N15-methyl-(9CI) | C85H90 Cl2 N8 O30 |
| 205386-57-8 | Rubrobramide | C12H17NO5 |
| 142463-55-6 | rteB protein |
| 1319-14-8 | Reddingite |
| 25000-95-7 | R-E 244 | C27H37 N7 O4 |
| 89139-43-5 | Ristomycin A aglycone,31-chloro-7-demethyl- 64-O-demethyl-19-deoxy- | C58H46ClN7O18 |
| 146082-65-7 | Ruthenium(2+),tris([2,2'-bipyridine]-4,4'-diamine-N1,N1')-, dichloride, (OC-6-11)- (9CI) | C30H30 N12 Ru . 2 Cl |
| 39989-37-2 | ROSE BENGAL, I-131 | C20H2Cl4I4K2O5 |
| 96728-15-3 | Radio-Opaque |
| 153125-17-8 | RO 23-9358 | C30H51 N O6 |
| 24151-60-8 | Rhodium,dicarbonyl(2,2,6,6-tetramethyl-3,5-heptanedionato-kO,kO')-, (SP-4-2)- (9CI) | C13H19 O4 Rh |
| 111018-90-7 | rhamnan |
| 194413-71-3 | RU 40066 |
| 96685-01-7 | rabdoserrin A | C20H26 O5 |
| 133135-99-6 | Restriction endonuclease sau3ai |
| 69011-49-0 | REXYN 101 (H) | C21H31NO5 |