StructureChemical NameCASMF
7H-Cyclopenta[1,2-b:3,4-c']dithiophene 17965-49-0 C9H6S2
7H-Cyclopenta[1,2-c:3,4-c']dithiophene 17965-48-9 C9H6S2
7H-Cyclopenta[1,2-b:3,4-b']dithiophene 17965-47-8 C9H6S2
1H-Cyclopent[g]indolizine,2-ethyl-2,3,5,6,7,8,9,9b-octahydro-9b-methyl-(9CI) 499980-30-2 C14H23N
4H-Cyclopenta-1,3-dioxole-4-alpha-,5,6-triol,3a-bta-,5-alpha-,6-bta-,6a-bta--tetrahydro-2,2-dimethyl-(8CI) 30276-63-2 C8H14O5
3H-Cyclopenta[b]pyridin-2-amine,4,4a,5,6,7,7a-hexahydro-4-methyl-,(4R,4aR,7aR)-rel-(9CI) 566151-55-1 C9H16N2
4H-Cyclopenta-1,3-dioxol-4-one,3a,6a-dihydro-2,2-dimethyl-5-(1E)-1-propenyl-,(3aS,6aS)-(9CI) 683276-30-4 C11H14O3
2H-Cyclopenta[b]pyridin-2-one,octahydro-4-methyl-,(4-alpha-,4a-bta-,7a-bta-)-(9CI) 179685-94-0 C9H15NO
5H-Cyclopenta[c]pyridin-5-ol,6,7-dihydro-7-methylene-(9CI) 184827-10-9 C9H9NO
5H-Cyclopenta[d]pyrazolo[1,5-a]pyrimidine-2-carboxamide,6,7-dihydro-N-(5-methyl-1,3,4-thiadiazol-2-yl)-8-(trifluoromethyl)-(9CI) 606096-56-4 C14H11F3N6OS
1H-Cyclopenta[c]pyridine,octahydro-4,7-dimethyl-,[4R-(4-alpha-,4a-alpha-,7-alpha-,7a-alpha-)]-(9CI) 176486-94-5 C10H19N
5H-Cyclopenta[b]pyridine,6,7-dihydro-2,4-dimethyl-(9CI) 335276-76-1 C10H13N
2H-Cyclopenta[b]furan-4-methanol,2-ethoxyhexahydro-4-hydroxy-5-methyl-,(2alpha,3aalpha,4alpha,5alpha,6aalpha)-(9CI) 123671-86-3 C11H20O4
1H-Cyclopenta[4,5]pyrrolo[3,2-e]benzimidazole(9CI) 74382-17-5 C12H7N3
4H-Cyclopenta-1,3-dioxol-4-one,3a,6a-dihydro-2,2-dimethyl-5-(1Z)-1-propenyl-,(3aS,6aS)-(9CI) 683276-31-5 C11H14O3
4H-CYCLOPENTA(DEF)CHRYSENE 202-98-2 C19H12
5H-Cyclopenta[c]pyridine,6,7-dihydro-4,5-dimethyl-(9CI) 116963-96-3 C10H13N
1H-Cyclopent[c]isoxazol-6-ol,5-fluorohexahydro-,[3aS-(3aalpha,5alpha,6alpha,6aalpha)]- 160189-50-4 C6H10FNO2
5H-Cyclopenta[b]pyridin-5-amine,6,7-dihydro-(9CI) 535935-84-3 C8H10N2
5H-Cyclopenta[b]pyridine-3,4-diamine,6,7-dihydro-(9CI) 142425-83-0 C8H11N3
5H-Cyclopentapyrazine-6-methanol,6,7-dihydro-(9CI) 607345-38-0 C8H10N2O
1H-Cyclopropa[d]pyrrolo[2,1-b]thiazole(9CI) 251568-41-9 C7H5NS
5H-Cyclopenta[e]pyrido[1,2-c][1,3]oxazine,decahydro-7-methyl-,(3a-alpha-,7-alpha-,10a-alpha-,10b-alpha-)-(9CI) 146339-04-0 C12H21NO
4H-Cyclopenta[b]thiophene-3-carboxamide,2-amino-5,6-dihydro-N-methyl-(9CI) 666715-71-5 C9H12N2OS
7H-Cyclopenta[c]pyridin-7-one,5,6-dihydro-5-hydroxy-(9CI) 184827-12-1 C8H7NO2
1H-Cyclopenta(c)phenanthrene, 2,3-dihydro- 7258-52-8 C17H14
5H-Cyclopenta[c]pyridin-5-one,6,7-dihydro-7-methyl-,(+)-(9CI) 119308-94-0 C9H9NO
2H-Cyclopenta(b)naphtho(2,3-d)furan-10-carboxylic acid,5-(acetyloxy)-2 -(3-furanyl)-3,3a,4a,5,5a,8,9,9a,10,10a-decahydro-1,6,9a,10a-tetrameth yl-9-oxo-, methyl ester, (2R,3aS,4aS,5R,5aS,9aR,10S,10aR)- 78916-54-8 C28H34O7
2H-Cyclopenta[b]furan-2-one, 4,5-dihydro-3-methyl-5-methylene- (9CI) 587887-59-0 C9H8O2
2H-Cyclopenta[b]pyridin-2-one, 1,4a,5,6,7,7a-hexahydro-4-methyl- (9CI) 630122-47-3 C9H13NO
1H-Cyclopenta[3,4]cyclobuta[1,2-b]pyridine(9CI) 121847-07-2 C10H7N
5H-Cyclopenta[b]pyridin-2-amine,4a,6,7,7a-tetrahydro-4-methyl-,(4aR,7aR)-rel-(9CI) 483358-14-1 C9H14N2
1,5,6,7-Tetrahydrocyclopenta[d]pyrimidin-4-one 5661-01-8 C7H8N2O
5H-Cyclopentapyrimidine, 6,7-dihydro-4-methyl- (9CI) 500893-45-8 C8H10N2
2H-Cyclopenta[b]furan-2-one, 5-acetyl-3,3a,6,6a-tetrahydro-, (3aR,6aS)-rel- 196297-98-0 C9H10O3
1H-Cycloocta[e]benzimidazole(9CI) 93659-10-0 C13H10N2
5H-Cyclopenta[b]pyridin-6-amine,6,7-dihydro-,(6R)-(9CI) 654676-30-9 C8H10N2
8H-Cyclohept[d]isoxazol-8-one,3-methyl-(9CI) 83702-63-0 C9H7NO2
5H-Cyclopenta[b]pyridin-6-amine,6,7-dihydro-,(6S)-(9CI) 654676-54-7 C8H10N2
5H-Cyclopentapyrazine-2-carbonitrile,3-amino-6,7-dihydro-,4-oxide(9CI) 63630-29-5 C8H8N4O
5H-Cyclopentapyrazine,4a,6,7,7a-tetrahydro-2,3,5,7-tetramethyl-(9CI) 41330-33-0 C11H18N2
1H-Cyclopenta[b]quinoxalin-5-ol,2,3-dihydro-(6CI) 116055-54-0 C11H10N2O
5H-Cyclopentapyrimidin-5-one, 4a,6,7,7a-tetrahydro- (9CI) 89095-41-0 C7H8N2O
2H-Cycloheptoxazol-2-one,octahydro-8a-methyl-,(3aR,8aS)-rel-(9CI) 335200-15-2 C9H15NO2
2H-Cyclopentoxazol-2-one, 4,5-bis(acetyloxy)-6-(acetyloxy)methylhexahydro-, 3aS-(3a.alpha.,4.alpha.,5.beta.,6.alpha.,6a.alpha.)- 138395-73-0
4H-Cyclohept[d]isoxazol-4-one,5-hydroxy-(9CI) 178315-30-5 C8H5NO3
1H-Cyclopent[c]isoxazole,hexahydro-3,3,6-trimethyl-(9CI) 188726-77-4 C9H17NO
5H-Cyclopenta[d]pyrazolo[1,5-a]pyrimidin-8-ol,2-(3,4-dimethoxyphenyl)-6,7-dihydro-(9CI) 606116-39-6 C17H17N3O3
3H-Cyclopent[c]isoxazole,3a,4,5,6-tetrahydro-6-(2-thienyl)-,(3aR,6R)-rel-(9CI) 233606-26-3 C10H11NOS
5H-Cyclopentapyrimidine, 6,7-dihydro-2,4-dimethyl- (9CI) 88268-24-0 C9H12N2
4H-Cyclopentoxazole-4,5-diol, 6-(acetyloxy)methyl-2-(dimethylamino)-3a,5,6,6a-tetrahydro-, diacetate (ester), (3aS,4R,5R,6S,6aS)- 114621-71-5 C15H22N2O7
5H-CYCLOPENTA[B]PYRIDINE 270-91-7 C8H7N
5H-Cyclopenta[b]pyridine-3-carbonitrile,6,7-dihydro-(9CI) 108994-73-6 C9H8N2
4H-Cyclopentapyrimidin-4-one, 1,5,6,7-tetrahydro-, hydrazone (9CI) 299441-29-5 C7H10N4
5H-Cyclohepta[b]pyridine,4-ethoxy-6,7,8,9-tetrahydro-,1-oxide(9CI) 136178-24-0 C12H17NO2
1H-Cyclopenta[b]pyridine-2,5-dione,hexahydro-,(4aR,7aR)-rel-(9CI) 186247-20-1 C8H11NO2
5H-Cyclopenta[b]pyridine-7-thiol,6,7-dihydro-(9CI) 133073-01-5 C8H9NS
6H-Cyclohepta[c]thiophen-6-one, 5,7-dimethyl- 23026-73-5
2H-Cyclopentapyrimidin-2-one, 1,5,6,7-tetrahydro- (9CI) 60914-27-4 C7H8N2O
2H-Cyclopentoxazol-2-one, 5,6-bis(benzoyloxy)hexahydro-4-(hydroxymethyl)-, 3aS-(3a.alpha.,4.alpha.,5.beta.,6.alpha.,6a.alpha.)- 171357-43-0 C21H19NO7
6H-Cyclopenta[b]furan-6-one, hexahydro-3a,6a-dihydroxy-, (3aR,6aR)-rel- (9CI) 587875-10-3 C7H10O4
1H-Cyclobuta(cd)pentalene, 1a,3a,5a,5b-tetrahydro-1-(1-methylethyliden e)- 64096-77-1 C12H14
15H-Cyclopenta(a)phenanthrene, 16,17-dihydro-3-methoxy-17-methyl- 26584-90-7 C19H18O
4H-cyclopenta(def)chrysen-4-ol 143924-52-1 C19H12O
4H-CYCLOPENTA(DEF)PHENANTHREN-4-OL 64884-42-0 C15H10O
5H-Cyclopropa[3,4]benz[1,2-e]azulen-5-one, 9,9a-bis(acetyloxy)-1,1a,1b ,2,4a,7a,7b,8,9,9a-decahydro-2,4a,7b-trihydroxy-3-(hydroxymethyl)-1,1, 6,8-tetramethyl-, [1aR-(1aalpha,1bbeta,2beta,4abeta,7aalpha,7balpha,8a lpha,9beta,9aalpha)]- 77573-19-4 C24H32O9
1H-Cyclopropa[g]quinazoline (9CI) 656231-71-9 C9H6N2
4H-Cyclopenta-1,3-dioxole-4-alpha-,5,6-triol,3a-alpha-,5-alpha-,6-bta-,6a-alpha--tetrahydro-2,2-dimethyl-(8CI) 30276-65-4 C8H14O5
5H-Cyclopentapyrazine,6,7-dihydro-6-methyl-,1-oxide(9CI) 61928-80-1 C8H10N2O
1H-Cyclopent[c]isoxazole-1-ethanol,-alpha--ethylhexahydro-,(3a-alpha-,6a-alpha-)-[partial]-(9CI) 197244-19-2 C10H19NO2
5H-Cyclopenta[b]pyridine-6-methanol,6,7-dihydro-,(6R)-(9CI) 591768-73-9 C9H11NO
7H-Cyclobuta[d]naphthalen-9-ol,2a,3,5a,6,8,9-hexahydro-,(2aR,5aR,9R)-rel-(9CI) 653573-00-3 C12H16O
1H-Cyclopentcisoxazole-3,4,5,6-tetrol, hexahydro-1-methyl-, 4,5,6-triacetate, 3R-(3.alpha.,3a.alpha.,4.alpha.,5.beta.,6.alpha.,6a.alpha.)- 88111-88-0 C13H19NO8
2H-Cyclopentoxazol-2-one, hexahydro-4,5-dihydroxy-6-(hydroxymethyl)-, 3aR-(3a.alpha.,4.alpha.,5.beta.,6.alpha.,6a.alpha.)- 138395-78-5
3H-Cycloprop[15,16]androsta-5,15-dien-17-one,3-[[(1,1- 82543-10-0 C26H42O3Si
5H-Cyclopenta[b]pyridin-7-amine,6,7-dihydro-,(7S)-(9CI) 502612-54-6 C8H10N2
4H-Cyclopenta[c]furan-4-aceticacid,5,6-dihydro-5,6-dihydroxy-,(4S,5R,6S)-(9CI) 752225-57-3 C9H10O5
5H-Cyclobut[e]oxazolo[3,2-a]pyrimidine(9CI) 771565-48-1 C8H6N2O
2H-Cyclopenta[b]furan-2-one,4-(1,3-dioxolan-2-yl)hexahydro-,(3aR,4S,6aS)-rel-(9CI) 842126-02-7 C10H14O4
1H-Cyclobut[f]indene,2,4,5,6-tetrahydro- 60582-10-7 C11H12
6H-Cyclopenta[b]thiophen-6-one,4,5-dihydro-5-hydroxy-,(5R)-(9CI) 827609-16-5 C7H6O2S
6H-Cyclopenta[g]cinnolin-4-ol, 3-chloro-7,8-dihydro- 854729-10-5 C11H9ClN2O
1H-Cyclopropa[3,4]cyclopent[1,2-d]imidazole (9CI) 782499-58-5 C7H4N2
2H-Cyclohepta[4,5]furo[2,3-d]pyrimidine-2,4(3H)-dione, 1,7-dihydro-1,3-dimethyl-7-[1,2,3,4-tetrahydro-1,3-dimethyl-2,4-dioxo-6-(phenylamino)-5- 872038-86-3 C25H23N5O5
1H-Cyclopenta[b]quinoxaline, 2,3-dihydro- 7193-24-0 C11H10N2
4H-Cyclopenta-1,3-dioxol-4-one, tetrahydro-2,2-dimethyl- 40269-48-5 C8H12O3
6H-Cyclopenta[g]quinoxaline, 7,8-dihydro- 518036-16-3 C11H10N2
2H-Cyclopenta[b]quinoxaline 774-68-5 C11H8N2
2H-Cyclohepta[4,5]furo[2,3-d]pyrimidine-2,4(3H)-dione, 1,7-dihydro-1,3-dimethyl-7-(phenylthio)- (9CI) 548475-62-3 C19H16N2O3S
8(2H)-Cycloheptapyrazolone, 3,3a,4,5,6,7-hexahydro- 79370-65-3 C8H12N2O
5H-Cyclopenta[b]pyridine-5,7(6H)-dione, 6-amino- 344753-96-4 C8H6N2O2
5H-Cyclopenta[b]pyridine-3-carbonitrile, 2-amino-6,7-dihydro- 65242-18-4 C9H9N3
1H-Cyclooctapyrazole, 3-methyl- 110661-74-0 C10H10N2
5H-Cyclopentapyrazine-2-carbonitrile, 3-amino-6,7-dihydro- (9CI) 63630-30-8 C8H8N4
3(2H)-Cyclopentapyrazolone, 3a,4,5,6-tetrahydro-2,3a-dimethyl- 89209-31-4 C8H12N2O
1H-Cyclopenta[b]quinoxaline (8CI,9CI) 269-67-0 C11H8N2
5H-Cycloprop[c]indol-5-one, 3-acetyl-1,1a,2,3-tetrahydro-, (1aS)- (9CI) 133629-87-5 C11H11NO2
1H-Cyclopenta[b]benzofuran (8CI,9CI) 247-09-6 C11H8O
5H-Cyclopenta[b]pyridine-3,7-dicarbonitrile, 2-amino-5-[[5-(diethylamino)-2-furanyl]methylene]-4,6-dimethyl- 366469-49-0 C21H21N5O
3(2H)-Cyclopentapyrazolone, 1,6-dihydro-2-phenyl- 313996-28-0 C12H10N2O
68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228