• Urea, N'-(4-chlorophenyl)-N-(hydroxymethyl)-N-methyl-
• 84640-48-2
• C₉H₁₁ClN₂O₂
• .

• Uridine 5'-(tetrahydrogen triphosphate), 3-(2-oxo-2-phenylethyl)-
• 917567-56-7
• C₁₇H₂₁N₂O₁₆P₃
• .

• Uridine 5'-(tetrahydrogen triphosphate), 5,6-dihydro-6-oxo-
• 917567-57-8
• C₉H₁₅N₂O₁₆P₃
• .

• Urea,N-(4-chlorophenyl)-N'-[4-methoxy-3-(1-methyl-1H-pyrazol-5-yl)phenyl]-
• 839713-96-1
• C₁₈H₁₇ClN₄O₂
• .

• Uridine 5'-(tetrahydrogen triphosphate), 3-(2-oxo-2-phenylethyl)-,2'-(dihydrogen phosphate)
• 917567-66-9
• C₁₇H₂₂N₂O₁₉P₄
• .

• Urginea maritima, ext.
• 84650-62-4
• 283-520-2
• .

• Urea,N-butyl-N'-[1,6-dihydro-6-oxo-4-[4-[tris(1-methylethyl)silyl]-3-butyn-1-yl]-2-pyrimidinyl]-
• 917745-87-0
• C₂₂H₃₈N₄O₂Si
• .

• Urea, N-butyl-N'-[4-(3-butyn-1-yl)-1,6-dihydro-6-oxo-2-pyrimidinyl]-
• 917745-88-1
• C₁₃H₁₈N₄O₂
• .

• Urea, N-(2-chloro-4-pyridinyl)-N'-(2,3-difluorophenyl)-
• 847371-01-1
• C₁₂H₈ClF₂N₃O
• .

• Urea, N-(2-chloro-4-pyridinyl)-N'-(2,6-difluorophenyl)-
• 847371-04-4
• C₁₂H₈ClF₂N₃O
• .

• Urea, N-(2-chloro-4-pyridinyl)-N'-(3,4-difluorophenyl)-
• 847371-05-5
• C₁₂H₈ClF₂N₃O
• .

• Urea, N-(2-chloro-4-pyridinyl)-N'-(2,3,4-trifluorophenyl)-
• 847371-06-6
• C₁₂H₇ClF₃N₃O
• .

• Urea, N-(2-chloro-4-pyridinyl)-N'-(2,4,6-trifluorophenyl)-
• 847371-09-9
• C₁₂H₇ClF₃N₃O
• .

• Urea, N-(2-chloro-4-pyridinyl)-N'-(2,3,4,5-tetrafluorophenyl)-
• 847371-10-2
• C₁₂H₆ClF₄N₃O
• .

• Urea, N-(2-chloro-4-pyridinyl)-N'-(2,3,5,6-tetrafluorophenyl)-
• 847371-12-4
• C₁₂H₆ClF₄N₃O
• .

• Urea,N-[3-(4-amino-2-propyl-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl)propoxy]-N'-ethyl-, trifluoroacetate
• 847440-10-2
• C₁₈H₂₅N₇O₂·xC₂HF₃O₂
• .

• Urea,N-[3-(4-amino-2-propyl-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl)propoxy]-N'-phenyl-, trifluoroacetate
• 847440-12-4
• C₂₂H₂₅N₇O₂·xC₂HF₃O₂
• .

• Urea,N-[3-(4-amino-2-propyl-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl)propoxy]-N'-cyclohexyl-, trifluoroacetate
• 847440-14-6
• C₂₂H₃₁N₇O₂·xC₂HF₃O₂
• .

• Urea,N-[3-(4-amino-2-propyl-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl)propoxy]-N'-(4-methylphenyl)-, trifluoroacetate
• 847440-16-8
• C₂₃H₂₇N₇O₂·xC₂HF₃O₂
• .

• Urea,N-[3-(4-amino-2-propyl-1H-imidazo[4,5-c][1,5]naphthyridin-1-yl)propoxy]-N'-(2-phenylethyl)-, trifluoroacetate
• 847440-18-0
• C₂₄H₂₉N₇O₂·xC₂HF₃O₂
• .

• Urea,N-[2-[4-amino-2-(ethoxymethyl)-1H-imidazo[4,5-c]quinolin-1-yl]ethyl]-N'-(1-methylethyl)-
• 847544-50-7
• C₁₉H₂₆N₆O₂
• .

• Urea, [1-[2-[4-(2-benzothiazolyloxy)phenyl]ethyl]-4-piperidinyl]-
• 841203-51-8
• C₂₁H₂₄N₄O₂S
• .

• Urea, [[1-[[4-(2-benzothiazolyloxy)phenyl]methyl]-4-piperidinyl]methyl]-
• 841203-74-5
• C₂₁H₂₄N₄O₂S
• .

• Urea, N,N'-bis(hydroxymethyl)-, reaction products with acetone, 2-butyne-1,4-diol, 3,4-dihydro-2-methoxy-2H-pyran, ethylene glycol, formaldehyde and tetrahydro-1,3,4,6-tetrakis(hydroxymethyl)imidazo[4,5-d]imidazole-2,5(1H,3H)-dione
• 84777-56-0
• 284-085-1
• .

• Urea, N,N'-bis(hydroxymethyl)-, reaction products with 2-butyne-1,4-diol, ethylene glycol, formaldehyde, glutaraldehyde and tetrahydro-1,3,4,6-tetrakis(hydroxymethyl)imidazo[4,5-d]imidazole-2,5(1H,3H)-dione
• 84777-57-1
• 284-086-7
• .

• Urea, N,N'-bis(hydroxymethyl)-, reaction products with [1,2-ethanediylbis(oxy)]bis[methanol], ethylene glycol, formaldehyde and tetrahydro-1,3,4,6-tetrakis(hydroxymethyl)imidazo[4,5-d]imidazole-2,5(1H,3H)-dione
• 84777-58-2
• 284-087-2
• .

• Urea,N-[2-(2,1,3-benzothiadiazol-5-ylamino)-6-(2,6-dichlorophenyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-11-3
• C₂₄H₂₀Cl₂N₈OS
• .

• Urea,N-[2-(2,1,3-benzothiadiazol-4-ylamino)-6-(2,6-dichlorophenyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-12-4
• C₂₄H₂₀Cl₂N₈OS
• .

• Urea,N-[6-(2,6-dichlorophenyl)-2-[(1,3-dihydro-2,2-dioxido-2,1-benzisothiazol-5-yl)amino]pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-13-5
• C₂₅H₂₃Cl₂N₇O₃S
• .

• Urea,N-[6-(2,6-dichlorophenyl)-2-[(2-methyl-6-benzoxazolyl)amino]pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-14-6
• C₂₆H₂₃Cl₂N₇O₂
• .

• Urea,N-[6-(2,6-dichlorophenyl)-2-(imidazo[1,2-a]pyridin-6-ylamino)pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-18-0
• C₂₅H₂₂Cl₂N₈O
• .

• Urea,N-[2-(2,1,3-benzothiadiazol-5-ylamino)-6-(2,6-dichlorophenyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-ethyl-
• 918106-21-5
• C₂₂H₁₆Cl₂N₈OS
• .

• Urea,N-[2-(2,1,3-benzothiadiazol-5-ylamino)-6-(2,6-dibromophenyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-22-6
• C₂₄H₂₀Br₂N₈OS
• .

• Urea,N-[2-(2,1,3-benzothiadiazol-5-ylamino)-6-(2,6-dibromophenyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-ethyl-
• 918106-23-7
• C₂₂H₁₆Br₂N₈OS
• .

• Urea,N-[2-(2,1,3-benzothiadiazol-5-ylamino)-6-(2,6-dichlorophenyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-phenyl-
• 918106-24-8
• C₂₆H₁₆Cl₂N₈OS
• .

• Urea,N-[2-(2,1,3-benzothiadiazol-5-ylamino)-6-(3,5-dimethoxyphenyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-25-9
• C₂₆H₂₆N₈O₃S
• .

• Urea,N-[2-(2,1,3-benzothiadiazol-5-ylamino)-6-phenylpyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-26-0
• C₂₄H₂₂N₈OS
• .

• Urea,N-[6-(2,6-dichlorophenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-phenyl-
• 918106-27-1
• C₂₁H₁₅Cl₂N₅O₃S
• .

• Urea,N-[6-(3,5-dimethoxyphenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-28-2
• C₂₁H₂₅N₅O₅S
• .

• Urea,N-[6-(2,6-dichlorophenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-ethyl-
• 918106-29-3
• C₁₇H₁₅Cl₂N₅O₃S
• .

• Urea,N-[6-(3,4-dimethoxyphenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-30-6
• C₂₁H₂₅N₅O₅S
• .

• Urea,N-[6-(2,6-dibromophenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-33-9
• C₁₉H₁₉Br₂N₅O₃S
• .

• Urea,N-[6-(2-bromo-6-chlorophenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-34-0
• C₁₉H₁₉BrClN₅O₃S
• .

• Urea,N-[6-(2,6-dibromophenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-ethyl-
• 918106-35-1
• C₁₇H₁₅Br₂N₅O₃S
• .

• Urea,N-[6-(2-bromo-6-chlorophenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-phenyl-
• 918106-36-2
• C₂₁H₁₅BrClN₅O₃S
• .

• Urea,N-[6-(2,6-dibromophenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-phenyl-
• 918106-37-3
• C₂₁H₁₅Br₂N₅O₃S
• .

• Urea,N-[6-(2,4-dichlorophenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7-yl]-N'-(1,1-dimethylethyl)-
• 918106-38-4
• C₁₉H₁₉Cl₂N₅O₃S
• .

• Undecanoic acid, compd. with 1-naphthalenemethanamine (1:1)
• 675103-61-4
• C₁₁H₂₂O₂·C₁₁H₁₁N
• .

• Urea, N-(2-aminoethyl)-N'-(2,6-dimethylphenyl)-, monohydrochloride
• 847951-00-2
• C₁₁H₁₇N₃O·ClH
• .

• Uridine,2'-deoxy-5-[8-hydroxy-8-oxido-17-(2,5,9-trimethyl-7-oxo-7H-furo[3,2-g][1]benzopyran-3-yl)-7,9,16-trioxa-8-phosphaheptadec-1-yn-1-yl]-
• 918138-05-3
• C₃₆H₄₅N₂O₁₃P
• .