• Urea,N-ethyl-N'-[3'-[3-oxo-2-(3-pyridinylmethyl)pyrido[2,3-b]pyrazin-4(3H)-yl][1,1'-biphenyl]-3-yl]-
• 176031-52-0
• C₂₈H₂₄N₆O₂
• .

• Urea,N-[3-[3-oxo-2-(phenylmethyl)pyrido[2,3-b]pyrazin-4(3H)-yl]phenyl]-N'-5-quinolinyl-
• 176031-91-7
• C₃₀H₂₂N₆O₂
• .

• Urea,N-(2-aminophenyl)-N'-[3-[3-oxo-2-(phenylmethyl)pyrido[2,3-b]pyrazin-4(3H)-yl]phenyl]-
• 176031-95-1
• C₂₇H₂₂N₆O₂
• .

• Urea,N'-(2,4-difluorophenyl)-N-[5-[(1,4-diphenyl-1H-imidazol-2-yl)thio]pentyl]-N-heptyl-
• 139878-59-4
• C₃₄H₄₀F₂N₄OS
• .

• Urea,N-butyl-N-[8-[(4,5-diphenyl-1H-imidazol-2-yl)thio]octyl]-N'-(1-methylethyl)-
• 139878-62-9
• C₃₁H₄₄N₄OS
• .

• Uridine, 5-bromo-6-ethoxy-5,6-dihydro-
• 139878-25-4
• C₁₁H₁₇BrN₂O₇
• .

• Urea, (7-chloro-2-benzothiazolyl)trimethyl-
• 139961-69-6
• C₁₁H₁₂ClN₃OS
• .

• Urea,N'-(2,4-difluorophenyl)-N-[5-[(1,5-diphenyl-1H-imidazol-2-yl)thio]pentyl]-N-heptyl-
• 139878-60-7
• C₃₄H₄₀F₂N₄OS
• .

• Urea,N-(2,4-difluorophenyl)-N-[5-[(4,5-diphenyl-1H-imidazol-2-yl)thio]pentyl]-N'-(1-methylethyl)-
• 139878-63-0
• C₃₀H₃₂F₂N₄OS
• .

• Urea, N'-(2,4-difluorophenyl)-N-heptyl-N-(5-hydroxy-3,3-dimethylpentyl)-
• 139878-67-4
• C₂₁H₃₄F₂N₂O₂
• .

• Uridine, 5-bromo-6-ethoxy-5,6-dihydro-, 2',3',5'-triacetate
• 139878-27-6
• C₁₇H₂₃BrN₂O₁₀
• .

• Uridine, 2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-, 5'-benzoate
• 139888-25-8
• C₂₂H₃₀N₂O₆Si
• .

• Uridine,5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-4-S-[(2,2-dimethyl-1-oxopropoxy)methyl]-4-thio-, 3'-acetate
• 139887-86-8
• C₃₈H₄₂N₂O₉S
• .

• Urea,N-[5-[1,1-dimethyl-2-(phenylmethoxy)ethyl]-1,3,4-thiadiazol-2-yl]-N-methyl-N'-[(phenylmethoxy)methyl]-
• 139888-75-8
• C₂₃H₂₈N₄O₃S
• .

• Uridine, 4'-cyano-2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-,5'-acetate
• 139888-08-7
• C₁₈H₂₇N₃O₆Si
• .

• Uridine, 4'-cyano-2',3'-dideoxy-, 5'-acetate
• 139888-22-5
• C₁₂H₁₃N₃O₅
• .

• Uridine,2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-4'-[(hydroxyimino)methyl]-
• 139888-04-3
• C₁₆H₂₇N₃O₆Si
• .

• Uridine, 2'-deoxy-4-S-[(2,2-dimethyl-1-oxopropoxy)methyl]-4-thio-,3'-acetate
• 139887-88-0
• C₁₇H₂₄N₂O₇S
• .

• Uridine,5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-4-S-[(2,2-dimethyl-1-oxopropoxy)methyl]-4-thio-, 3'-(hydrogen phosphonate)
• 139887-90-4
• C₃₆H₄₁N₂O₁₀PS
• .

• Uridine, 2',5'-dideoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-5'-oxo-
• 139887-97-1
• C₁₅H₂₄N₂O₅Si
• .

• Uridine,5'-O-[bis(4-methoxyphenyl)phenylmethyl]-2'-deoxy-4-S-[(2,2-dimethyl-1-oxopropoxy)methyl]-4-thio-
• 139887-84-6
• C₃₆H₄₀N₂O₈S
• .

• Uridine,2'-deoxy-3'-O-[(1,1-dimethylethyl)dimethylsilyl]-4'-(hydroxymethyl)-
• 139888-00-9
• C₁₆H₂₈N₂O₆Si
• .

• Urea, N-(6,7-dichloro-2-benzothiazolyl)-N'-propyl-
• 139961-89-0
• C₁₁H₁₁Cl₂N₃OS
• .

• Urea, N-butyl-N'-(6,7-dichloro-2-benzothiazolyl)-
• 139961-87-8
• C₁₂H₁₃Cl₂N₃OS
• .

• Urea, N-(6,7-dichloro-2-benzothiazolyl)-N'-methyl-
• 139961-67-4
• C₉H₇Cl₂N₃OS
• .

• Urea, N,N-diethyl-N'-[2-hydroxy-2-[5-(triethylsilyl)-3-furanyl]ethyl]-
• 139961-45-8
• C₁₇H₃₂N₂O₃Si
• .

• Urea, N-(6,7-dichloro-2-benzothiazolyl)-N,N'-dimethyl-
• 139961-96-9
• C₁₀H₉Cl₂N₃OS
• .

• Urea, N-(7-chloro-2-benzothiazolyl)-N-cyclopropyl-N'-(methoxymethyl)-
• 139961-97-0
• C₁₃H₁₄ClN₃O₂S
• .

• Urea, N-(7-chloro-2-benzothiazolyl)-N'-methyl-N-(1-methylethyl)-
• 139961-92-5
• C₁₂H₁₄ClN₃OS
• .

• Urea, N-(7-chloro-2-benzothiazolyl)-N'-cyclohexyl-N-methyl-
• 139961-94-7
• C₁₅H₁₈ClN₃OS
• .

• Urea, N-(7-chloro-2-benzothiazolyl)-N-methyl-N'-(1-methylethyl)-
• 139961-75-4
• C₁₂H₁₄ClN₃OS
• .

• Urea, N-1-naphthalenyl-N'-[1-(phenylmethyl)propyl]-
• 160235-28-9
• C₂₁H₂₂N₂O
• .

• Undecanoic acid, 4-[5-(5-hydroxy-1-hexenyl)-2-pyrimidinyl]phenyl ester,(E)-
• 139973-03-8
• C₂₇H₃₈N₂O₃
• .

• Urea, N-(1-cyanoethyl)-N-cyclohexyl-N'-(2-methylpropyl)-
• 105651-50-1
• C₁₄H₂₅N₃O
• .

• Urea, N-(1-cyanoethyl)-N-methyl-N'-phenyl-
• 105651-33-0
• C₁₁H₁₃N₃O
• .

• Urea, N-(1-cyanoethyl)-N-cyclohexyl-N',N'-bis(2-hydroxyethyl)-
• 105651-51-2
• C₁₄H₂₅N₃O₃
• .

• Urea, N-(2-chloroethyl)-N-nitroso-N'-[3-(tripropylsilyl)propyl]-
• 106030-41-5
• C₁₅H₃₂ClN₃O₂Si
• .

• Urea, N-(2-chloroethyl)-N-nitroso-N'-[3-(trimethylsilyl)propyl]-
• 106030-46-0
• C₉H₂₀ClN₃O₂Si
• .

• Urea,N'-[3-chloro-4-[[6-(cyclopentyloxy)-3-pyridazinyl]thio]phenyl]-N,N-dimethyl-
• 106015-22-9
• C₁₈H₂₁ClN₄O₂S
• .

• Urea, N'-[3-chloro-4-[(6-chloro-3-pyridazinyl)thio]phenyl]-N,N-dimethyl-
• 106015-27-4
• C₁₃H₁₂Cl₂N₄OS
• .

• Urea, N'-[3-chloro-4-[(6-ethoxy-3-pyridazinyl)thio]phenyl]-N,N-dimethyl-
• 106015-42-3
• C₁₅H₁₇ClN₄O₂S
• .

• Urea,N'-[3-chloro-4-[(6-methoxy-3-pyridazinyl)thio]phenyl]-N,N-dimethyl-
• 106015-40-1
• C₁₄H₁₅ClN₄O₂S
• .

• Urea,N'-[3-chloro-4-[(6-methoxy-3-pyridazinyl)thio]phenyl]-N-methoxy-N-methyl-
• 106015-41-2
• C₁₄H₁₅ClN₄O₃S
• .

• Urea,N'-[3-chloro-4-[(6-propoxy-3-pyridazinyl)thio]phenyl]-N,N-dimethyl-
• 106015-43-4
• C₁₆H₁₉ClN₄O₂S
• .

• Urea, N'-[4-[(6-butoxy-3-pyridazinyl)thio]-3-chlorophenyl]-N,N-dimethyl-
• 106015-45-6
• C₁₇H₂₁ClN₄O₂S
• .

• Urea, N-(2-chloroethyl)-N-nitroso-N'-[4-(triethylsilyl)butyl]-
• 106030-43-7
• C₁₃H₂₈ClN₃O₂Si
• .

• Urea,N'-[3-chloro-4-[[6-(cyclohexyloxy)-3-pyridazinyl]thio]phenyl]-N,N-dimethyl-
• 106015-23-0
• C₁₉H₂₃ClN₄O₂S
• .

• Uridine, 5'-O-[tris(4-methylphenyl)methyl]-, 2'-benzoate
• 141236-88-6
• C₃₈H₃₆N₂O₇
• .

• Urea, N-butyl-N-(1-cyanoethyl)-N'-cyclohexyl-
• 105651-31-8
• C₁₄H₂₅N₃O
• .

• Urea, N-(2-bromoethyl)-N-nitroso-N'-[(triethylsilyl)methyl]-
• 106030-86-8
• C₁₀H₂₂BrN₃O₂Si
• .