| 1 | 248-00-0 | 3H-Pyrazolo[1,5-a]benzimidazole(8CI,9CI) | C9H7N3 | 157.17 | | |
| 2 | 248-02-2 | 5,6-(1,3-Butadiene-1,4-diyl)thiazolo[3,2-d]tetrazole | C7H4N4S | 176.2 | | |
| 3 | 248-11-3 | 1H-Cyclopent[a]azulene (8CI,9CI) | C13H10 | 166.22 | | |
| 4 | 248-13-5 | Azuleno[2,1-b]thiophene | C12H8S | 184.26 | | |
| 5 | 248-14-6 | Azuleno[1,2-d]thiazole (8CI,9CI) | C11H7NS | 185.24 | | |
| 6 | 248-21-5 | 6,3,5-(Iminoethanylylidene)cyclopenta[b]pyrrole, octahydro- (8CI,9CI) | C9H14N2 | 150.22 | | |
| 7 | 248-22-6 | 6,3,5-(Epoxyethanylylidene)cyclopenta[b]pyrrole, octahydro- (9CI) | C9H13NO | 151.21 | | |
| 8 | 248-23-7 | 6,3,5-(Epoxyethanylylidene)-2H-cyclopenta[b]furan, hexahydro- (8CI,9CI) | C9H12O2 | 152.19 | | |
| 9 | 248-24-8 | 6,3,5-(Epoxyethanylylidene)cyclopent[d]-1,2-oxathiole, hexahydro- (8CI,9CI) | C8H10O2S | 170.23 | | |
| 10 | 248-25-9 | 3,2,6-(Epoxyethanylylidene)furo[3,2-b]furan, hexahydro- (8CI,9CI) | C8H10O3 | 154.16 | | |
| 11 | 248-36-2 | Chryseno[1,2-b]oxirene(9CI) | C18H10O | 242.27 | | |
| 12 | 248-52-2 | 12H-[1]Benzothieno[3',2':4,5]cyclopenta[1,2-b]quinoline | C18H11NS | 273.35 | | |
| 13 | 248-58-8 | Indeno[2,1-a]indene | C16H10 | 202.25 | | |
| 14 | 248-59-9 | Indeno[1,2-b]indole | C15H9N | 203.24 | | |
| 15 | 248-66-8 | 10H-BENZOFURO[3,2-B]INDOLE | C14H9NO | 207.23 | 197 °C | |
| 16 | 248-70-4 | Benzo[b]benzo[4,5]thieno[2,3-d]thiophene | C14H8S2 | 240.34 | 218.0 to 222.0 °C | |
| 17 | 248-71-5 | 6H-Isoindolo[2,1-a]indole | C15H11N | 205.25 | 214-218 °C | |
| 18 | 248-72-6 | 11H-benzo[4,5]imidazo[2,1-a]isoindole | C14H10N2 | 206.24 | | |
| 19 | 248-80-6 | 5H,11H-BENZOTRIAZOLO[2,1-A]BENZOTRIAZOLE | C12H10N4 | 210.23 | | |
| 20 | 248-85-1 | BENZO[B]PHENANTHRO[2,3-D]THIOPHENE | C20H12S | 284.37 | | |
| 21 | 248-93-1 | 13H-indeno[1,2-b]anthracene | C21H14 | 266.34 | | |
| 22 | 248-96-4 | 5H-naphtho[2,3-b]carbazole | C20H13N | 267.32 | | |