| 73201-25-9 | Ristomycin A aglycone | C60H51N7O19 |
| 99593-25-6 | Rilmazafone | C21H20Cl2N6O3 |
| 141255-35-8 | Reactive yellow 165 |
| 64734-75-4 | Ro 20-7222 (9CI) |
| 50948-31-7 | R45 (steel) |
| 11056-09-0 | Ranimycin | C12H18 O6 |
| 145139-16-8 | RME1 protein |
| 94079-67-1 | Retrofractamide A |
| 1329-27-7 | Rheochrysin | C22H22O10 |
| 12137-34-7 | RUBIDIUM TITANATE | O3Rb2Ti |
| 2535-20-8 | Russupteridine IV | C13H18 N4 O6 |
| 14284-92-5 | Rhodium(III) 2,4-pentanedionate | C15H21O6Rh |
| 58955-93-4 | rac trans-10,11-Dihydro-10,11-dihydroxy Carbamazepine | C15H14 N2 O3 |
| 109872-41-5 | renzapride | C16H22 Cl N3 O2 . Cl H |
| 62669-77-6 | RHODAMINE 116 PERCHLORATE | C22H19N2O3•ClO4 |
| 36753-03-4 | rhenium tetrabromide | Br4Re |
| 110882-85-4 | Ristomycin A aglycone,5,31-dichloro-7-demethyl-64-O-demethyl-19-deoxy-56-O-[2-deoxy-2-[(1-oxododecyl)amino]-b-D-glucopyranuronosyl]-42-O-a-D-mannopyranosyl-N15-methyl- (9CI) | C83H88 Cl2 N8 O29 |
| 38128-75-5 | Rifamycin M 88 |
| 1875-50-9 | rasagiline | C12H13N |
| 8014-29-7 | RUE OIL |
| 14523-22-9 | Rhodium carbonyl chloride | C4Cl2 O4 Rh2 |
| 24259-59-4 | Ribose | C5H10O5 |
| 113-45-1 | Ritalin | C14H19 N O2 |
| 83381-73-1 | Ristomycin A,31-chloro-2C-O-de[O-â-Darabinopyranosyl-( 1f2)-R-Dmannopyranosyl]- 6C-O-de(6-deoxy-R-Lmannopyranosyl)- 19-deoxy- |
| 87687-03-4 | RESORUFIN PENTYL ETHER | C17H17 N O3 |
| 1744-22-5 | Riluzole | C8H5F3N2OS |
| 125181-21-7 | Rosthornin B | C24H34 O7 |
| 71771-90-9 | R(-)-DENOPAMINE | C18H23 N O4 |
| 136-36-7 | RESORCINOL MONOBENZOATE | C13H10 O3 |
| 102110-55-4 | Residues (petroleum),steam-cracked light, arom. |
| 158681-13-1 | Rimonabant hydrochloride | C22H21Cl3N4O.HCl |
| 25038-84-0 | RS 6234 | (C17H6O7.C13H14N2)x |
| 30271-90-0 | razinodil | C27H34 N4 O10 . Cl H |
| 4439-62-7 | rotenonone | C23H18O7 |
| 90385-02-7 | retrohydroxamate ferrichrome | C27H42 Fe N9 O12 |
| 83802-77-1 | Retinoyl fluoride | C20H27 F O |
| 117848-05-2 | ribosomal protein A0 | C20H25ClN2O |
| 13446-73-6 | RUBIDIUM DICHROMATE | Cr2H2 O7 . 2 Rb |
| 69505-74-4 | resorcinin | C23H40 O2 |
| 101363-10-4 | RUFLOXACIN | C17H18FN3O3S |
| 132579-32-9 | Rocepafant | C26H23ClN6OS2 |
| 13569-71-6 | RHENIUM (V) CHLORIDE | Cl4Re |
| 37278-25-4 | RIBONUCLEASE T2 FROM ASPERGILLUS ORYZAE |
| 22732-89-4 | Riboflavin,5'-O-glucopyranosyl- | C23H30N4O11 |
| 17752-85-1 | Reactive Red 1 | C19H12 Cl2 N6 O10 S3 . 3 Na |
| 148504-51-2 | Ripisartan | C23H22 N8 O |
| 12236-82-7 | REACTIVE BLUE 2 | C29H20ClN7O11S3 |
| 37488-15-6 | rhodium(3+) bromide ammoniate (1:3:4) | Br3H12N4Rh |
| 37350-14-4 | R14F4 |
| 6522-74-3 | Reactive Orange 1 | C19H12Cl2N6O7S2 |
| 30051-65-1 | Ruthenate(3-),diaquaoctachloro-m-nitridodi-,potassium (1:3) | Cl8H4 N O2 Ru2 . 3 K |
| 12237-00-2 | Reactive Red 31 | Unspecified |
| 80156-96-3 | Reactive Red 261 | C27H22 Cl N7 O13 S4 . 3 Na |
| 62758-13-8 | Resazurin Sodium Salt | C12H6NNaO4 |
| 34245-14-2 | RAC D 617 (N-METHYL-4-(3,4-DIMETHOXYPHENYL)-4-CYANO-5-METHYLHEXYLAMINE) | C17H26 N2 O2 |
| 6998-60-3 | RIFAMYCIN SV | C37H47 N O12 |
| 80125-14-0 | Remoxipride | C16H23BrN2O3 |
| 23211-47-4 | Reactive Red 3 | C25H18 Cl N7 O10 S3 . 3 Na |
| 122931-48-0 | Rimsulfuron | C14H17N5O7S2 |
| 119584-53-1 | Rastim 30 DKV | C16H13 N O3 S |
| 74622-75-6 | ravidomycin | C31H33 N O9 |
| 13573-16-5 | Reinecke salt | C4H6CrN6S4.H4N |
| 139532-75-5 | retinoblastoma binding protein 2 |
| 162401-32-3 | Roflumilast | C17H14Cl2F2N2O3 |
| 74752-08-2 | Recainam tosylate [USAN] | C15H25N3O |
| 51683-28-4 | Rifamazid |
| 88181-59-3 | ruthenium-tris-1,4,5,8-tetraazaphenanthrene | C30H18 N12 Ru . 2 Cl |
| 62653-92-3 | rohitukin | C34H42O13 |
| 99675-34-0 | R51703 |
| 100403-64-3 | Rosin, sapond. |
| 24815-24-5 | RESCINNAMINE | C35H42 N2 O9 |
| 84012-38-4 | Ruscus aculeatus, ext. |
| 144416-03-5 | receptor-like protein tyrosine phosphatase mu |
| 30012-26-1 | Rhenium,pentacarbonylgermyl-, (OC-6-22)- | C5H3 Ge O5 Re |
| 41898-61-7 | Ruthenate(4-),hexakis(cyano-kC)-,iron(3+) (3:4),(OC-6-11)- |
| 76567-41-4 | REN-293 | C9H13 N O3 |
| 12225-63-7 | Reactive blue 52 |
| 1310-82-3 | Rubidium hydroxide | RbOH |
| 84775-94-0 | Radish, ext. |
| 24969-11-7 | RESORCINOL-FORMALDEHYDE RESIN | C7H8O3 |
| 91032-36-9 | Ristomycin A aglycone, 34-O-2-(acetylamino)-2-deoxy-.beta.-D-glucopyranosyl-22,31-dichloro-7-demethyl-64-O-demethyl-19-deoxy-56-O-2-deoxy-2-(1-oxodecyl)amino-.beta.-D-glucopyranosyl-42-O-.alpha.-D-mannopyranosyl- | C88H97Cl2N9O33 |
| 63961-71-7 | RC 39II | C13H15 N O3 |
| 95378-00-0 | radermachol | C24H16 O4 |
| 148466-41-5 | rol protein | C13H26O5S |
| 69222-83-9 | rac-1,2-Di-O-oleoyl-3-S-oleoyl-3-thioglycerol | C57H104O5S |
| 90597-77-6 | Remazol Brilliant Blue G |
| 84593-61-3 | Rowatinex |
| 31126-95-1 | Rhodium(II) trifluoroacetate dimer | C8F12 O8 Rh2 |
| 154992-24-2 | RU 58841 | C17H18F3N3O3 |
| 22481-48-7 | RADON220 | Rn |
| 94270-86-7 | Reomet 39 | C24H42N4 |
| 20004-62-0 | RESISTOMYCIN | C22H16 O6 |
| 151233-06-6 | respinomycin C | C36H45 N O14 |
| 107712-70-9 | Relaxin (Rajaerinacea-B reduced) (9CI) | C216H332 N66 O55 S3 |
| 151308-34-8 | RES-701-1 | C103H115 N23 O23 |
| 144132-05-8 | ribosome-inactivating protein, maize |
| 149719-06-2 | RS 23597-190 HYDROCHLORIDE | C16H23 Cl N2 O3 . Cl H |
| 102-39-6 | RESORCINOL-O,O'-DIACETIC ACID | C10H10O6 |
| 12532-37-5 | Rubidium, di-m-iododi- | I2Rb2 |
| 130342-81-3 | RTI-COC 32 | C17H23 N O2 |