• RNA formation factor(Saccharomyces cerevisiae clone pAM240 gene RME1 reduced) (9CI)
• 145139-16-8
• 0
• .

• Radon, isotope of mass220
• 22481-48-7
• Rn
• 0
• .

• Rubidium, ion (Rb1+)
• 22537-38-8
• Rb
• 85.4673
• .

• RNA formation factor(Anacystis nidulans strain R2 clone pMAV59/pMAV58 gene ntcA) (9CI)
• 147785-30-6
• 0
• .

• Resins, olibanum
• 8050-07-5
• 232-474-1
• 0
• .

• Rubiwettin RG 1 (9CI)
• 129039-46-9
• 0
• .

• RNA formation factor(Saccharomyces cerevisiae clone pJF203 gene SPT14 reduced) (9CI)
• 146834-60-8
• 0
• .

• Rheochrysin
• 1329-27-7
• C₂₂H₂₂O₁₀
• 0
• .

• Resin acids,hydrogenated, Me esters
• 8050-15-5
• 232-476-2
• 0
• .

• RNA formation factorCBF-A (mouse clone lCBFA-T7 CArG box-binding reduced) (9CI)
• 148710-92-3
• 0
• .

• Radium, isotope of mass227
• 15743-84-7
• Ra
• 227
• .

• Ruthenium, isotope ofmass 105
• 14331-95-4
• Ru
• 105
• .

• Riboflavin,8-demethyl-8-ethyl- (9CI)
• 5720-14-9
• C18H22 N4 O6
• 0
• .

• RNA formation factor(Citrobacter freundii clone pNU311 gene ampR reduced) (9CI)
• 125267-46-1
• 0
• .

• Reflux
• 587-23-5
• C₁₄H₂₀N₄O₃
• 209-597-4
• 292.33
• .

• Riboflavin,8-demethyl-8-fluoro-
• 1691-79-8
• C16H17 F N4 O6
• 0
• .

• Retinol, 4-azido- (9CI)
• 92484-22-5
• C20H29 N3 O
• 0
• .

• Rosin, fumarated, polymer with dipentaerythritol and pentaerythritol
• 72230-81-0
• 0
• .

• Rhenium bromide (ReBr4)
• 36753-03-4
• Br4Re
• 253-187-8
• 505.823
• .

• RNA formation factor(Streptomyces cacaoi clone pMCP141 gene blA reduced) (9CI)
• 142615-56-3
• 0
• .

• Residues (petroleum),vacuum, hydrocracked, vacuum gas oil fraction
• 129893-09-0
• 0
• .

• Ristomycin A aglycone,56-O-[2-amino-2-deoxy-b-D-glucopyranuronosyl]-5,31-dichloro-7-demethyl-64-O-demethyl-19-deoxy-N15-methyl-(9CI)
• 116528-12-2
• C65H56 Cl2 N8 O23
• 1388.08594
• .

• Rifamycin,3-[(1-piperazinylimino)methyl]-
• 13292-45-0
• C42H56 N4 O12
• 0
• .

• Rhodium, [adenosine5'-(diphosphato)(3-)-OP,OP']tetraaqua-, [OC-6-33-(S)]- (9CI)
• 88930-47-6
• C10H20 N5 O14 P2 Rh
• 0
• .

• Rhenium telluride(ReTe2)
• 12067-00-4
• ReTe2
• 235-074-5
• 441.41
• .

• Rifamycin,4-O-[2-(butylmethylamino)-2-oxoethyl]- (9CI)
• 16784-08-0
• C44H60 N2 O13
• 0
• .

• Ribitol,1-[3-(aminocarbonyl)-6,7-dimethyl-2-oxo-1(2H)-quinoxalinyl]-1-deoxy-
• 13698-42-5
• C16H21 N3 O6
• 0
• .

• RNA formation factorGATA 2 (human clone M1/DT3A reduced) (9CI)
• 142615-58-5
• 0
• .

• Ruthenium chloridehydroxide (RuCl3(OH)) (9CI)
• 16845-29-7
• Cl3H O Ru
• 224.43
• .

• Rehmannioside A
• 81720-05-0
• C₂₁H₃₂O₁₅
• 524.47
• .

• Riboflavin5'-(trihydrogen diphosphate), 6-azido-, P'®5'-ester with adenosine (9CI)
• 101760-85-4
• C27H32 N12 O15 P2
• 0
• .

• Rubidium, isotope ofmass 79
• 14809-48-4
• Rb
• 79
• .

• Rhodium, isotope ofmass 107
• 15706-50-0
• Rh
• 107
• .

• RNA formation factor p135 (bovine herpesvirus 1 strain K22 clone pMV340 reduced) (9CI)
• 147096-59-1
• 0
• .

• Rifamycin,25-O-deacetyl-3-[(E)-[(4-methyl-1-piperazinyl)imino]methyl]-
• 16783-99-6
• C41H56 N4 O11
• 780.9
• .

• Ramoplanin A 1 (peptidemoiety),1-[N2-[(2Z,4E)-7-methyl-1-oxo-2,4-octadienyl]-L-asparagine]-11-[(2S)-2-[4-(a-D-mannopyranosyloxy)phenyl]glycine]-(9CI)
• 124884-29-3
• C113H144 Cl N21 O35
• 2391.9252
• .

• Rum ether (natural)
• 8030-89-5
• C₂H₆O·
• 232-449-5
• 0
• .

• Residues (petroleum),steam-cracked light, arom.
• 102110-55-4
• 310-057-6
• .

• Rhodium, ion (Rh3+)
• 16065-89-7
• Rh
• 102.9039
• .

• RNA formation factor(Saccharomyces cerevisiae gene HAP4 reduced) (9CI)
• 125388-57-0
• .

• Rifamycin,4-O-[2-oxo-2-(1-piperidinyl)ethyl]- (9CI)
• 14487-04-8
• C44H58 N2 O13
• 822.9369
• .

• Receptor,chemoattractant protein 1 (human clone CCR2-A isoform 1a reduced) (9CI)
• 156286-78-1
• 0
• .

• Riboflavin,1,5-dihydro-3-methyl-, 2',3',4',5'-tetraacetate (9CI)
• 69447-57-0
• C26H32 N4 O10
• 0
• .

• Rhenium, isotope ofmass 184
• 14983-46-1
• Re
• 183.9525
• .

• Rhodate(1-),bis[[2,3-butanedione di(oximato-kN)](1-)]dichloro-, hydrogen, (OC-6-12)- (9CI)
• 25618-12-6
• C8H14 Cl2 N4 O4 Rh . H
• 406.0485
• .

• RNA formation factor(human clone HG6.6/Zap33 gene EGR3 reduced) (9CI)
• 144516-98-3
• 0
• .

• Rhenanite (CaNa(PO4))(9CI)
• 15555-25-6
• Ca. H3 O4 P . Na
• 0
• .

• Rhizoxin
• 90996-54-6
• C35H47 N O9
• 0
• .

• Retinoic acid,4-(acetylamino)phenyl ester (9CI)
• 103810-85-1
• C28H35 N O3
• 0
• .

• RNA formation factorNF-E 1 (mouse clone 127 reduced) (9CI)
• 125267-48-3
• 0
• .