• Ruflux S
• 67180-83-0
• .

• RU 24411
• 66878-01-1
• C₂₂H₃₂O₃
• 344.48768
• .

• RU 27218
• 66824-41-7
• .

• Ruberitrinic acid
• 50764-64-2
• .

• Rosin, polymer with glycerol, linoleic acid, pentaerythritol and phthalic anhydride
• 68389-93-5
• .

• Rosin, hydrogenated, polymer with glycerol, maleic anhydride and turpentine oil
• 96349-79-0
• .

• Ruthenocene,[[(carboxymethyl)amino]carbonyl]-
• 96343-30-5
• .

• Ruthenium(2+), (4-amino-1-methyl-2(1H)-pyrimidinone-N3)pentaammine-, (OC-6-22)-, bis(tetrafluoroborate(1-))
• 75579-09-8
• C₁₀H₇N₇O₂S
• 289.27328
• .

• Retzafoam 30
• 39331-43-6
• .

• Rosin, polymer with fumaric acid, glycerol, phthalic anhydride and soybean oil
• 68309-61-5
• .

• Rosin, polymer with butylphenol, formaldehyde and phenol
• 68309-60-4
• .

• Ruthenium(3+), pentaamine(DL-histidine-N3)-, trichloride, (OC-6-22)-
• 50726-52-8
• C₆H₂₄Cl₃N₈O₂Ru
• 447.73616
• .

• Rubidium chloroiodide
• 50644-50-3
• Cl₂IRb
• 283.27827
• .

• Regelinone
• 66855-44-5
• .

• Ro 13-3892
• 83896-52-0
• .

• Rifamycin, 3,3-(1,4-piperazinediylbis(nitrilomethylidyne))bis-
• 37281-31-5
• .

• Reofos 110
• 37275-91-5
• .

• Ruthenium chloride, labeled with ruthenium-106
• 39290-93-2
• .

• r-L-Idopyranose
• 39281-68-0
• .

• Reductase,glucuronolactone
• 39281-67-9
• .

• Riebeckite
• 66733-82-2
• C₁₅H₁₃ClFN₃O₄
• 353.732823
• .

• Rhistin
• 66723-08-8
• .

• R 263eb
• 66794-35-2
• .

• Rhodamine 3GG
• 96345-62-9
• .

• Rubber, natural, reaction products with phenol
• 96278-67-0
• .

• R 254ca
• 813-75-2
• .

• Ridomil Z
• 86455-74-5
• .

• Ro 07-4065
• 39080-67-6
• .

• Reductase,nitrate (acceptor)
• 37256-45-4
• .

• Reductase,cytochrome c2 (reduced nicotinamide adenine dinucleotide phosphate)
• 37256-32-9
• .

• R 5751
• 7235-61-2
• C₁₇H₁₄CuN₃O₃
• 371.85736
• .

• Reductase,sulfite (ferredoxin)
• 37256-50-1
• .

• Reductase,nitrite (cytochrome)
• 37256-41-0
• .

• Reductase,3-methyleneoxindole
• 37255-29-1
• .

• R 2105
• 30850-72-7
• .

• Rigidite 5208
• 51653-14-6
• .

• Ranatuerin 8 (reduced)
• 215715-58-5
• .

• r-[[(benzoyloxy)mercurio]methyl]-
• 4388-16-3
• .

• Ro 5-0882
• 61442-59-9
• .

• Rosin, maleated, polymer with formaldehyde, glycerol, pentaerythritol and (1,1,3,3-tetramethylbutyl)phenol
• 68082-98-4
• .

• r-methyldihydro-
• 34532-84-8
• .

• Rhodium (1+), bis[1,2-ethanediylbis[diphenylphosphine]-P, P]-, (SP-4-1)-, perchlorate
• 30513-14-5
• C₅₂H₅₅ClO₄P₄Rh+₄
• 1002.212484 [g/mol]
• .

• R 698
• 30176-68-2
• C₁₂H₁₇NO₂
• .

• Ro 5-6528
• 91224-31-6
• .

• RS 82856
• 108609-34-3
• .

• ruthenium(+4) cation; 2-(3,4,5,6-tetrahydro-2H-pyridin-2-yl)-6H-pyridine; 2-(3,4,5,6-tetrahydro-2H-pyridin-2-yl)-3,4,5,6-tetrahydro-2H-pyridine; dinitrite
• 34398-56-6
• C₂₀H₃₂N₆O₄Ru-₂
• 521.57588
• .

• Ristomycin A aglycone, 5,22,31,45,55-pentachloro-7-demethyl-64-O-demethyl-34-O-(2-deoxy-2-((7-methyl-1-oxooctyl)amino)-alpha-D-glucopyranuronosyl)-44-O-beta-D-glucopyranosyl-56-O-beta-D-mannopyranosyl-N15-methyl-
• 137053-20-4
• C₈₆H₈₉Cl₅N₈O₃₅
• 1971.92446
• .

• Rehmapicrogenin
• 135447-39-1
• .

• R 24952
• 56214-99-4
• .

• Ristomycin A aglycone, 22, 31-dichloro-38-de(methoxycarbonyl)-7-demethyl-19-deoxy-38-[[(tricyclo[3.3.1.13,7]dec-2-ylamino)carbonyl]-
• 562105-39-9
• C₆₈H₆₀Cl₂N₈O₁₇
• 1332.1534
• .