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StructureChemical NameCASMF
2,4,5,6(1H,3H)-pyrimidinetetrone 5-[N-(4-chlorophenyl)hydrazone] C10H7ClN4O3
10H,16H-Pyrrolo[2,1-c]quinazolino[3,2-a][1,4]benzodiazepine-10,16-dione, 5b,6,7,8-tetrahydro-4-hydroxy-2-methoxy-, (5bS)- (9CI) 232922-22-4 C20H17N3O4
2,4(1H,3H)-Pyrimidinedione, dihydro-3-methyl-1-(2-methylpropyl)-6-thioxo- 216686-76-9 C9H14N2O2S
1H,5H-Pyrazolo[1,2-a]pyrazol-1-one, 2,3-diamino-6,7-dihydro- 857035-94-0 C6H10N4O
4,6(1H,5H)-Pyrimidinedione, 5-[[4-bromo-5-(dimethylamino)-2-furanyl]methylene]dihydro-1-(4-methylphenyl)-2-thioxo- 469902-28-1 C18H16BrN3O3S
2,4(1H,3H)-Pyrimidinedione, 3-benzoyl-1-(4-chlorobutyl)-5-(2-fluoro-3-pyridinyl)- 952403-29-1 C20H17ClFN3O3
2,4(1H,3H)-Pyrimidinedione, 5,6-diamino-1-hydroxy- 37440-37-2 C4H6N4O3
1H,5H-Pyrazolo[1,2-a]pyrazole-1,5-dione, 3-methyl- 78901-41-4 C7H6N2O2
1,3,6,8(2H,7H)-Pyrenetetrone, 4,9-dibromo-2,7-bis[5,8-diethoxy-1,4-dihydro-6-(4-morpholinyl)-4-oxo-2-quinazolinyl]- (9CI) 811803-77-7 C48H44Br2N6O12
2,4,5,6(1H,3H)-pyrimidinetetrone 5-[N-(2-ethoxyphenyl)hydrazone] C12H12N4O4
4H,6H-Pyrazolo[1,5-c]thiazole-2-methanol 623564-67-0 C6H8N2OS
4,6(1H,5H)-Pyrimidinedione, 1-(3-chlorophenyl)-5-[[5-(diethylamino)-2-furanyl]methylene]dihydro-2-thioxo- 366823-50-9 C19H18ClN3O3S
4,6(1H,5H)-Pyrimidinedione, 5-[[5-(diethylamino)-2-furanyl]methylene]-1-(2,4-dimethylphenyl)dihydro-2-thioxo- 366467-57-4 C21H23N3O3S
4,6(1H,5H)-Pyrimidinedione, dihydro-5-((2-chlorophenyl)methylene)-1-(3 -methoxyphenyl)-2-thioxo-3-(2,4,6-trimethylphenyl)- 79838-87-2
1H,5H-Pyrazolo[1,2-a]pyrazol-1-one, 2-amino-6,7-dihydro-3-hydroxy- (9CI) 753398-03-7 C6H9N3O2
2,4(1H,3H)-Pyrimidinedione, 3-(1,3-dihydro-3-oxo-1-isobenzofuranyl)-5- fluoro- 82023-29-8 C12H7FN2O4
4,6(1H,5H)-Pyrimidinedione, 1-(4-bromo-2-methylphenyl)-5-[[5-(diethylamino)-2-furanyl]methylene]dihydro-2-thioxo- 367454-21-5 C20H20BrN3O3S
4,6(1H,5H)-Pyrimidinedione, 5-[[5-(dimethylamino)-2-furanyl]methylene]dihydro-1-(2-propenyl)-2-thioxo- (9CI) 471272-92-1 C14H15N3O3S
4,6(1H,5H)-Pyrimidinedione, 5-[[5-(diethylamino)-2-furanyl]methylene]-1-(3-fluorophenyl)dihydro-2-thioxo- 444673-73-8 C19H18FN3O3S
10H,16H-Pyrrolo[2,1-c]quinazolino[3,2-a][1,4]benzodiazepine-10,16-dione, 5b,6,7,8-tetrahydro-4-hydroxy-2,12-dimethoxy-, (5bS)- (9CI) 232922-21-3 C21H19N3O5
1H,6H-Pyrazolo[1,2:1,2]pyrazolo[3,4-d]pyridazine (9CI) 150100-72-4 C8H8N4
2,4(1H,3H)-Pyrimidinedithione, dihydro-3-methyl- 4874-09-3 C5H8N2S2
1H,6H-Pyrazolo[1,2:1,2]pyrazolo[4,3-d]pyrimidine (9CI) 748776-77-4 C8H8N4
4,6(1H,5H)-Pyrimidinedione, 5-[[5-(diethylamino)-2-furanyl]methylene]dihydro-1-(3-methylphenyl)-2-thioxo- 366472-30-2 C20H21N3O3S
4,6(1H,5H)-Pyrimidinedione, 5-[[5-(diethylamino)-2-furanyl]methylene]-1-(3,4-dimethylphenyl)dihydro-3-phenyl-2-thioxo- 366822-71-1 C27H27N3O3S
1H,5H-Pyrazolo[1,2-a]pyrazol-1-one, 6,7-dihydro-2,3-dimethyl- 51938-03-5 C8H12N2O
2,4(1H,3H)-Pyrimidinedione, 1-(2,2-dimethylpropyl)dihydro-3-methyl-6-thioxo- 491614-46-1 C10H16N2O2S
3H,4H-pyrido[2,3-d]pyrimidin-4-one ethane C9H11N3O
2,4(1H,3H)-Pyrimidinedione, 1-[2-deoxy-2-fluoro-5-O-[(4-methoxyphenyl)diphenylmethyl]-β-D-arabinofuranosyl]-5-methyl- 121353-88-6 C30H29FN2O6
3H,7H-Pyrrolo[1,2-c]thiazol-7-one,1,7a-dihydro-(9CI) 439856-57-2 C6H7NOS
2,6(1H,3H)-Pyridinedione, 1-amino-4-methyl- (9CI) 327070-43-9 C6H8N2O2
2,4(1H,3H)-PYRIMIDINEDIONE,1-[5-O-[BIS(4-METHOXYPHENYL)PHENYLMETHYL]-2-DEOXY-3-O-[(4-NITROPHENYL)SULFONYL]-BETA-D-THREO-PENTOFURANOSYL]-3-[(2,4-DIMETHOXYPHENYL)METHYL]-5-METHYL- 290371-75-4 C46H45N3O13S
9H,11H-Pyrazino(2,1-c)pyrrolo(1,2-a)(1,4)benzodiazepin-11-one, 12,13,1 4,14a-tetrahydro-13-acetyl- 144109-17-1 C17H17N3O2
2,4(1H,3H)-Pyrimidinedione,5-chloro-6-(chloromethyl)-(9CI) 73742-45-7 C5H4Cl2N2O2
2,4(1H,3H)-Pyrimidinedione,5-fluorodihydro-6-hydroxy-,trans-(9CI) 93713-25-8 C4H5FN2O3
2,4(1H,3H)-Pyrimidinedione, 5-ethynyl- (9CI) 59989-18-3 C6H4N2O2
2,4(1H,3H)-Pyrimidinedione, 6-methyl-, 4-hydrazone (9CI) 42351-98-4 C5H8N4O
2,4(3H,5H)-Pyrimidinedione, 6-amino- (9CI) 14436-34-1 C4H5N3O2
1H,3H-Pyrrolo[1,2-c]oxazol-1-one,tetrahydro-3-(1-methylethyl)-,(3R-cis)-(9CI) 125815-84-1 C9H15NO2
4,6(1H,5H)-Pyrimidinedione,5-ethyldihydro-5-(2-propenyl)-2-thioxo-(9CI) 500534-89-4 C9H12N2O2S
2,4(1H,3H)-Pyrimidinedione, 5-ethynyl-1-methyl- (9CI) 250658-12-9 C7H6N2O2
2,4(1H,3H)-Pyrimidinedione, 1-[(2-hydroxyethoxy)methyl]-5-(1-methyleth yl)-6-(phenylseleno)- 172255-86-6
1H,3H-Pyrano[3,4-c]pyran-3-ol, hexahydro-, (4aR,8aS)-rel- (9CI) 632328-46-2 C8H14O3
2,4(1H,3H)-Pyrimidinedione, 5-(bromomethyl)- (9CI) 4874-37-7 C5H5BrN2O2
2,4(1H,3H)-Pyrimidinedione, 5-(1-propynyl)- (9CI) 134700-29-1 C7H6N2O2
2,6(1H,3H)-Pyridinedione, 5-acetyl- (9CI) 71350-43-1 C7H7NO3
4,6(1H,5H)-Pyrimidinedione, 5-amino- (9CI) 61753-91-1 C4H5N3O2
2,4(3H,5H)-Pyrimidinedione,6-(dimethylamino)-5,5-diethyl-3-methyl-(9CI) 413571-60-5 C11H19N3O2
2,4(1H,3H)-Pyrimidinedione, 5,6-diamino-3-methyl-1-(1-methylpropyl)- (9CI) 572922-77-1 C9H16N4O2
1H,3H-Pyrrolo[1,2-c]oxazole-1,3-dione,tetrahydro-7a-methyl-,(S)-(9CI) 63399-78-0 C7H9NO3
1H,3H-Pyrrolo[1,2-c]oxazol-3-one, tetrahydro-6,7-dihydroxy-, (6R,7S,7aR)-rel- (9CI) 667429-83-6 C6H9NO4
2,4(1H,3H)-Pyrimidinedione,3-(2-propynyl)-(9CI) 680575-04-6 C7H6N2O2
2,4(1H,3H)-Pyrimidinedione, 3,6-dimethyl-5-dimethylamino-1-phenyl- 31992-02-6 C14H17N3O2
2,4(1H,3H)-Pyrimidinedione, 6-(benzoyloxy)dihydro-5-methyl-5-nitro- 82531-52-0 C7H9N3O6
2,4(3H,5H)-Pyrimidinedione, 5,6-diamino- (9CI) 99446-09-0 C4H6N4O2
2,4(1H,3H)-Pyrimidinedione, 5,6-diamino-1-(2-methylpropoxy)- (9CI) 321890-32-8 C8H14N4O3
4,6(1H,5H)-Pyrimidinedione, dihydro-1-(4-fluorophenyl)-5-((3-nitrophen yl)methylene)-2-thioxo-3-(2,4,6-trimethylphenyl)- 79838-97-4 C26H20FN3O4S
2,4(1H,3H)-Pyrimidinedione,5-fluoro-3-(2-propynyl)-(9CI) 680575-05-7 C7H5FN2O2
1H,3H-Pyrrolo[1,2-c]oxazol-5-ol,7,7a-dihydro-3-(1-methylethyl)-,(3R,7aS)-rel- 759456-98-9 C9H15NO2
2,4(1H,3H)-Pyrimidinedione,dihydro-1-propyl-(9CI) 630416-68-1 C7H12N2O2
2,4(1H,3H)-Pyrimidinedione,1-methyl-,2-oxime,(2Z)-(9CI) 545379-75-7 C5H7N3O2
1H,3H-Pyrrolo[1,2-c]oxazole-1,3-dione,5-ethyltetrahydro-,(5S-cis)-(9CI) 87251-01-2 C8H11NO3
2,4,5,6(1H,3H)-pyrimidinetetrone 5-{N-[4-(2,3-dihydro-1H-indol-1-ylsulfonyl)phenyl]hydrazone} C18H15N5O5S
2H,5H-Pyrrolo[2,1-c:3,4-b]bis[1,4]thiazin-5-one, 3,4,7,8-tetrahydro- 942293-10-9 C9H10N2OS2
2,4,5,6(1H,3H)-pyrimidinetetrone 5-[(4-bromophenyl)hydrazone] C10H7BrN4O3
1H,7H-Pyrazolo[1,2-a]pyrazole-1,7-dione, tetrahydro-2-methyl- 161799-98-0 C7H10N2O2
2,4,5,6(1H,3H)-pyrimidinetetrone 5-{N-[4-(1-pyrrolidinylsulfonyl)phenyl]hydrazone} C14H15N5O5S
2,4,5,6(1H,3H)-pyrimidinetetrone 5-[N-(2-hydroxy-5-nitrophenyl)hydrazone] C10H7N5O6
2,4,5,6(1H,3H)-pyrimidinetetrone 5-[N-(4-bromo-3-chlorophenyl)hydrazone] C10H6BrClN4O3
2,4,5,6(1H,3H)-pyrimidinetetrone 5-({2-nitro-6-methylphenyl}hydrazone) 314759-78-9 C11H9N5O5
2,4,5,6(1H,3H)-pyrimidinetetrone 5-[(4-iodophenyl)hydrazone] C10H7IN4O3
2,4,5,6(1H,3H)-pyrimidinetetrone 5-({2-nitrophenyl}hydrazone) C10H7N5O5
2,4,5,6(1H,3H)-pyrimidinetetrone 5-(1-naphthylhydrazone) C14H10N4O3
1H,6H-Pyrazolo[1,5-c]thiazole-2-methanol, 3a,4-dihydro- 718621-58-0 C6H10N2OS
4,6(1H,5H)-Pyrimidinedione, 5-[[4-bromo-5-(dimethylamino)-2-furanyl]methylene]-1-(2-fluorophenyl)dihydro-2-thioxo- 474482-62-7 C17H13BrFN3O3S
2,4,5,6(1H,3H)-pyrimidinetetrone 5-{[2-(4-morpholinylcarbonyl)phenyl]hydrazone} 314758-84-4 C15H15N5O5
2,4,5,6(1H,3H)-pyrimidinetetrone 5-[(3-bromophenyl)hydrazone] 326911-50-6 C10H7BrN4O3
2,4,5,6(1H,3H)-pyrimidinetetrone 5-[(2-chlorophenyl)hydrazone] 111709-58-1 C10H7ClN4O3
4,6(1H,5H)-Pyrimidinedione, 5-[[4-bromo-5-(dimethylamino)-2-furanyl]methylene]-1-(3,4-dimethylphenyl)dihydro-2-thioxo- 471902-01-9 C19H18BrN3O3S
2,4,5,6(1H,3H)-pyrimidinetetrone 5-(1,3-thiazol-2-ylhydrazone) C7H5N5O3S
2,4,5,6(1H,3H)-pyrimidinetetrone 5-({2-hydroxy-5-nitrophenyl}hydrazone) C10H7N5O6
2,4,5,6(1H,3H)-pyrimidinetetrone 5-[N-(3-acetylphenyl)hydrazone] C12H10N4O4
(3,5-2H2)-2H-Pyran-2-one 22682-07-1
[(2,3,5-2H3)-1H-Pyrrol-1-yloxy]radical
[(2,5-2H2)-1H-Pyrrol-1-yloxy]radical
1H,9H-Pyrazolo[1,2-a]indazole-1,3(2H)-dione 54789-27-4 C10H8N2O2
6H,13H-Pyrazino[1,2-a:4,5-a']bisbenzimidazole 241-62-3 C16H12N4
(5-2H)-2H-Pyran-2-one
2H,5H-Pyrano[3,2-c][1]benzopyran-5-one 5527-38-8 C12H8O3
(1-2H)-2(1H)-Pyridone
[(2,3,4,5-2H4)-1H-Pyrrol-1-yloxy]radical
(3-2H)-2H-Pyran-2-one
2,4,5,6(1H,3H)-Pyrimidinetetrone 5-[(4-methoxy-2-nitrophenyl)hydrazone] 31353-87-4 C11H9N5O6
4H,5H-PYRANO[4,3-B]PYRAN-3-CARBONITRILE, 2-AMINO-4-(2-IODOPHENYL)-7-METHYL-5-OXO- 339584-01-9 C16H11IN2O3
2,4(1H,3H)-PYRIMIDINEDIONE, 6-AMINO-1-[2-(4-MORPHOLINYL)ETHYL]- 924834-96-8 C10H16N4O3
4H,5H-PYRANO[4,3-B]PYRAN-3-CARBONITRILE, 2-AMINO-4-(4-METHOXYPHENYL)-7-METHYL-5-OXO- 194282-76-3 C17H14N2O4
2,4(1H,3H)-PYRIMIDINEDIONE, 6-AMINO-1-[3-(DIMETHYLAMINO)PROPYL]- 924834-94-6 C9H16N4O2
4H,5H-PYRANO[4,3-B]PYRAN-3-CARBONITRILE, 2-AMINO-4-(4-BROMOPHENYL)-7-METHYL-5-OXO- 220986-36-7 C16H11BrN2O3
4H,5H-PYRANO[4,3-B]PYRAN-3-CARBONITRILE, 2-AMINO-4-(3-HYDROXYPHENYL)-7-METHYL-5-OXO- 220986-31-2 C16H12N2O4
4H,5H-PYRANO[4,3-B]PYRAN-3-CARBONITRILE, 2-AMINO-4-(2-CHLOROPHENYL)-7-METHYL-5-OXO- 220986-34-5 C16H11ClN2O3
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