• Repressor (plasmid Fgene pifC reduced) (9CI)
• 107371-47-1
• 0
• .

• rennet
• 9042-08-4
• 232-926-8
• 0
• .

• Rebamipide
• 90098-04-7
• C₁₉H₁₅ClN₂O₄
• 370.7864
• .

• Raffinates (petroleum),residual oil decarbonization
• 64742-07-0
• 265-106-3
• .

• Rhenium fluoride(ReF6), (OC-6-11)-
• 10049-17-9
• F6Re
• 233-172-2
• 300.2
• .

• Ruthenate(2-),bis[3-(diphenylphosphino-kP)benzenesulfonato][29H,31H-phthalocyaninato(2-)-kN29,kN30,kN31,kN32]-, dipotassium, (OC-6-12)-(9CI)
• 150814-58-7
• C68H44 N8 O6 P2 Ru S2 . 2 K
• .

• RNA formation factor(Drosophila clone 1dB-5 gene abdominal-A reduced) (9CI)
• 132084-67-4
• 0
• .

• Relaxin (Squalusacanthias-A reduced) (9CI)
• 105231-40-1
• C102H171 N29 O36 S5
• .

• Rifamycin,3-[[[2-(4-methyl-1-piperazinyl)ethoxy]imino]methyl]- (9CI)
• 22912-78-3
• C45H62 N4 O13
• 0
• .

• RNA formation factor(Pseudomonas strain ATCC 19151 clone DP165 gene sdsB reduced) (9CI)
• 147603-53-0
• 0
• .

• Ryanodol,O4,O15-dimethyl-, 3-(1-methyl-1H-pyrrole-2-carboxylate) (9CI)
• 106821-50-5
• C28H41 N O9
• 535.6264
• .

• Ruthenium, ion (Ru2+)
• 22541-59-9
• Ru
• 101.0689
• .

• RNA formation factorHSF 2 (human reduced) (9CI)
• 142297-91-4
• 0
• .

• Retinal, 13-cis-
• 472-86-6
• C20H28 O
• 207-456-1
• 284.44
• .

• RNA formation factor(Aspergillus nidulans clone pANC7 gene creA reduced) (9CI)
• 144516-87-0
• 0
• .

• Rifamycin,N,15-didehydro-15-deoxo-1-deoxy-1,15-epoxy-3-[4-[(2,4,6-trimethylphenyl)methyl]-1-piperazinyl]-,8-(2,2-dimethylpropanoate) (9CI)
• 123036-23-7
• C56H73 N3 O12
• 980.1917
• .

• Rhodium(1+),dichlorotetrakis(isonicotinic acid)-, chloride, trans- (8CI)
• 26012-81-7
• C24H16 Cl2 N4 O8 Rh . Cl . 4 H
• 682.3783
• .

• Rhodium, isotope ofmass 99
• 15765-79-4
• Rh
• 98.9081
• .

• RNA (Saccharomycescerevisiae tRNATrp II) (9CI)
• 12671-21-5
• .

• Reductase,12-oxophytodienoate
• 101150-03-2
• .

• Residues, copper speissacid leaching
• 100656-54-0
• 309-643-4
• .

• Rubescenin A (9CI)
• 79585-96-9
• 0
• .

• Restrictin (chickenclone RN-B911/RN-A539/RN-393/RN-233 precursor reduced) (9CI)
• 147604-77-1
• 0
• .

• Rubidium superoxide(Rb(O2)) (9CI)
• 12137-25-6
• O2Rb
• .

• Relaxin (Raja erinacea)(9CI)
• 107720-74-1
• C327H506 N96 O90 S9
• .

• Rhodium, tetrakis[m-(acetato-kO:kO')]di-, (Rh-Rh)
• 15956-28-2
• C₈H₁₂O₈Rh₂
• 240-084-8
• 441.9871
• .

• RNA formation factor Sp2 (human clone S1/7 reduced) (9CI)
• 148710-93-4
• 0
• .

• Ristomycin A aglycone,22,31-dichloro-7-demethyl-64-O-demethyl-19-deoxy-N15-[(phenylamino)thioxomethyl]-(9CI)
• 123631-08-3
• C65H50 Cl2 N8 O18 S
• 1334.1063
• .

• Rose, Rosa gallica,ext.
• 84604-13-7
• 283-290-3
• 0
• .

• Rubescenslysin (9CI)
• 73990-29-1
• 0
• .

• Riboflavin,5'-(hydrogen propanedioate) (9CI)
• 88623-79-4
• C20H22 N4 O9
• 0
• .

• Ribonucleoprotein(human clone 16 small nuclear RNA-containing B'-subunit reduced) (9CI)
• 128027-72-5
• .

• RNA formation factor(Rhodobacter sphaeroides strain RS6258 gene ppsR reduced) (9CI)
• 156559-41-0
• 0
• .

• Rhenium,diaquatetrabromobis[m-(propanoato-O:O')]di-, (Re-Re), stereoisomer (9CI)
• 88031-66-7
• C6H14 Br4 O6 Re2
• 0
• .

• Riboflavin,2',3',4',5'-tetraacetate
• 752-13-6
• C25H28 N4 O10
• 212-032-4
• 544.51062
• .

• Ryanodol, 3-deoxy-
• 62394-04-1
• C₂₀H₃₂O₇
• 384.4639
• .

• Rubidium, isotope ofmass 83
• 17056-36-9
• Rb
• 82.9151
• .

• Retinoic acid,3,4-didehydro-5,6-epoxy-5,6-dihydro-, all-trans- (8CI)
• 31979-12-1
• C20H26 O3
• 0
• .

• Ruthenate(2-),aquapentachloro-, dihydrogen, (OC-6-21)- (9CI)
• 12051-62-6
• Cl5H2 O Ru . 2 H
• 234-990-2
• .

• Ruthenium(2+), pentaammineaqua-, (OC-6-22)-
• 21393-88-4
• H₁₇N₅ORu+₂
• 0
• .

• Ro 7-1728/1 (9CI)
• 102583-52-8
• .

• Retinoic acid,4-(2-hydroxyethoxy)- (9CI)
• 133697-07-1
• C22H32 O4
• 0
• .

• Rhodium, isotope ofmass 100
• 15765-80-7
• Rh
• 100
• .

• Residues,copper-iron-lead-nickel matte, sulfuric acid-insol.
• 102110-49-6
• 310-050-8
• .

• Rhenium, isotope ofmass 183
• 14484-13-0
• Re
• 182.950821
• .

• Retinol,15-[(9Z,12Z)-9,12-octadecadienoate]
• 631-89-0
• C38H60 O2
• 548.8818
• .

• Ruthenium(2+),tris(4,7-diphenyl-1,10-phenanthroline-kN1,kN10)-, (OC-6-11-L)- (9CI)
• 91237-66-0
• C72H48 N6 Ru
• 0
• .

• Rosin, maleated, polymer with bisphenol A and formaldehyde
• 68188-63-6
• 0
• .

• Rhodium(1+),dichlorotetrakis(pyridine)-, chloride (1:1)
• 14077-03-3
• C20H20 Cl2 N4 Rh . Cl
• 525.6641
• .

• Rhodium,tris(1,1,1-trifluoro-2,4-pentanedionato-kO,kO')- (9CI)
• 14652-54-1
• C15H12 F9 O6 Rh
• 238-701-0
• 565.1671
• .