• Riboflavin,7-demethyl-7-ethyl- (9CI)
• 5720-13-8
• C18H22 N4 O6
• 342.3905
• .

• RNA,[P-deoxy-P-(dimethylamino)](2',3'-dideoxy-2',3'-imino-2',3'-seco)(2'®5')(A-C-G-m5U-m5U-G-A-G-G-G-G-C-A-m5U-C-G-m5U-C-G-C)(9CI)
• 267395-69-7
• .

• Raffinates (petroleum),reformer, Lurgi unit-sepd.
• 68425-35-4
• 270-349-3
• .

• Resin acids and Rosinacids, polymd., calcium salts
• 68783-14-2
• .

• Racemase, arginine
• 37290-94-1
• .

• Rosin, polymer withformaldehyde and phenol, calcium salts
• 192888-67-8
• .

• Riboflavin5'-(dihydrogen phosphate), 4a,5-dihydro-, sodium salt (9CI)
• 102338-88-5
• C17H23 N4 O9 P . x Na
• 570.33
• .

• Rape oil, bisulfited,sodium salt
• 84082-27-9
• 281-975-1
• 0
• .

• Rhenium,pentacarbonyl(triphenylstannyl)-, (OC-6-22)-
• 15614-21-8
• C23H15 O5 Re Sn
• 569.914383
• .

• Ruby (Al2O3)
• 12174-49-1
• Al2O3
• 0
• .

• Rape oil, sodium salt
• 68188-93-2
• 269-168-2
• .

• Ricin D (castor-oilplant alanine-chain protein moiety) (9CI)
• 72514-84-2
• .

• Ryosidine
• 89964-00-1
• 0
• .

• Residues, silversludge-electrolysis zinc-pptd., precious metal-contg.
• 100656-52-8
• 309-641-3
• .

• Ribonucleic acids,transfer, tyrosine-specific, Escherichia coli
• 92129-42-5
• 295-844-1
• .

• Resin acids, tall-oil,esters with glycerol
• 85566-48-9
• 287-658-4
• .

• 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-[(1-oxododecyl)amino]-b-D-glucopyranuronosyl]-N15-methyl-(9CI)
• 110882-87-6
• C85H90 Cl2 N8 O30
• .

• RNA formation factorZNF 174 (human) (9CI)
• 171042-66-3
• 0
• .

• Resin acids and Rosinacids, uranyl salts
• 68956-97-8
• 273-325-0
• .

• Resin acids and Rosinacids, polymd., lanthanum salts
• 71011-08-0
• .

• Residues (petroleum),catalytic cracking depropanizer, C4-rich
• 71329-37-8
• 0
• .

• Reofos 50 (9CI)
• 63848-94-2
• 0
• .

• Ribitol, 1,4-anhydro-
• 39999-42-3
• C₅H₁₀O₄
• 254-741-1
• 134.1305
• .

• Rhus succedanea, ext.
• 103798-70-5
• C₂₅H₃₂ClN₃O
• 310-125-5
• 425.99408
• .

• Resistaphyllin A (9CI)
• 12751-44-9
• .

• Ryanodol,3-(3,4,5-tribromo-1H-pyrrole-2-carboxylate) (9CI)
• 33068-29-0
• C25H32 Br3 N O9
• 730.2349
• .

• Ristomycin A aglycone,5,31-dichloro-7-demethyl-64-O-demethyl-19-deoxy-56-O-[2-deoxy-2-[(10-methyl-1-oxoundecyl)amino]-b-D-glucopyranuronosyl]-42-O-a-D-mannopyranosyl-N15-methyl-
• 110882-84-3
• C83H88 Cl2 N8 O29
• .

• Ragweed, Ambrosiaartemisifolia, ext.
• 90106-05-1
• 290-225-2
• .

• RP 30449 (9CI)
• 73905-22-3
• .

• Ribitol,1,4-anhydro-2,3-O-(1-methylethylidene)-, 4-nitrobenzoate (9CI)
• 39798-08-8
• C15H17 N O7
• 323.298
• .

• Rhenium,pentacarbonylmethyl-, (OC-6-21)-
• 14524-92-6
• C6H3 O5 Re
• 150.21756
• .

• Ribonucleic acid formation factor (rat clone pCB3 gene RPD3 reduced)
• 144714-44-3
• 0
• .

• Rutile, vanadium
• 85536-74-9
• 287-560-1
• .

• Reductase, cholestenone5b-
• 37255-35-9
• .

• Rapamycin,42-(dimethylphosphinate) (9CI)
• 697252-87-2
• C53H84 N O14 P
• .

• Rhizobium lupini
• 68814-58-4
• .

• Rubredoxin (Clostridiumpasteurianum protein moiety reduced), 1-L-methionine- (9CI)
• 138635-16-2
• C263H384 N60 O94 S5
• 0
• .

• Residual oils (shaleoil), hydrocracked, solvent-dewaxed
• 195459-54-2
• .

• Rosin, polymer with2-amino-2-(hydroxymethyl)-1,3-propanediol, fumaric acid and tung oil
• 193098-47-4
• .

• Rosin oil, sulfonated
• 70750-48-0
• .

• RP 35263 (9CI)
• 73905-28-9
• .

• Ribonucleic acids,viral, bacteriophage MS2
• 91081-42-4
• 293-647-5
• .

• Ruthenium, tetrakis[m-(acetato-kO:kO')]chlorodi-, (Ru-Ru)
• 38833-34-0
• C8H12 Cl O8 Ru2
• 254-144-6
• .

• Resin acids, tall-oil,potassium salts
• 84776-85-2
• 284-011-8
• .

• Rheothik 80-11
• 27119-07-9
• C₇H₁₃NO₄S
• 0
• .

• Ristomycin A aglycone, 34-O-(3-amino-2,3,6-trideoxy-.alpha.-L-ribo-hexopyranosyl)-
• 73412-13-2
• C66H62N8O21
• 0
• .

• RNA formation factorLAP (rat liver reduced) (9CI)
• 131553-80-5
• .

• RW 94 (9CI)
• 185969-56-6
• .

• Retinol,cyclopentanecarboxylate (9CI)
• 88641-45-6
• C26H38 O2
• 289-434-1
• 382.57872
• .

• Residues, zinc dross
• 69029-82-9
• 273-823-8
• .