| 1 | 258-04-8 | 12H-Benzo[b]phenoxazine | 12H-Benzo[b]phenoxazine | C16H11NO | 氮化合物;有机硅产品 | |
| 2 | 258-08-2 | 12H-苯并[B]吩噻嗪 | 12H-Benzo[b]phenothiazine | C16H11NS | | |
| 3 | 258-14-0 | NSC 129574 | Quinoxalino[2,3-b]quinoxaline | C14H8N4 | | |
| 4 | 258-16-2 | 12H-quinoxalino[2,3-b][1,4]benzoxazine | 12H-quinoxalino[2,3-b][1,4]benzoxazine | C14H9N3O | | |
| 5 | 258-17-3 | 12H-quinoxalino[2,3-b][1,4]benzothiazine | 12H-quinoxalino[2,3-b][1,4]benzothiazine | C14H9N3S | | |
| 6 | 258-20-8 | | [1,4]benzodioxino[3,2-b]quinoxaline | C14H8N2O2 | | |
| 7 | 258-31-1 | 并六苯 | Hexacene | C26H16 | 芳烃;稠环芳烃 | |
| 8 | 258-38-8 | 七【草(之上)+申】 | heptacene | C30H18 | | |
| 9 | 258-398-9 | 3-methylnon-2-enenitrile | 3-methylnon-2-enenitrile | C10H17N | | |
| 10 | 258-40-2 | | Dinaphtho[2,3-b:2',3'-i]phenazine (8CI,9CI) | C28H16N2 | | |
| 11 | 258-43-5 | | Dibenzo[g,g']pyrazino[2,3-b:5,6-b']diquinoxaline (9CI) | C24H12N6 | | |
| 12 | 258-47-9 | 2,3:6,7-Bis[1,3]butadienobiphenylene | 2,3:6,7-Bis[1,3]butadienobiphenylene | C20H12 | | |
| 13 | 258-57-1 | Quino[3,2-b]acridine | Quino[3,2-b]acridine | C20H12N2 | | |
| 14 | 258-59-3 | Quino[2,3-b]acridine | Quino[2,3-b]acridine | C20H12N2 | | |
| 15 | 258-67-3 | Quinoxalino[2,3-b]phenazine | Quinoxalino[2,3-b]phenazine | C18H10N4 | | |
| 16 | 258-72-0 | Triphenodioxazine | Triphenodioxazine | C18H10N2O2 | | |
| 17 | 258-73-1 | 12H,14H-[1,4]Benzothiazino[3,2-b]phenothiazine (6CI,8CI,9CI) | 12H,14H-[1,4]Benzothiazino[3,2-b]phenothiazine (6CI,8CI,9CI) | C18H12N2S2 | | |
| 18 | 258-76-4 | Dibenzo[b,i]phenazine | Dibenzo[b,i]phenazine | C20H12N2 | | |
| 19 | 258-77-5 | | Benzo[g]quinoxalino[2,3-b]quinoxaline | C18H10N4 | | |
| 20 | 258-78-6 | 13H-Dibenzo[b,i]phenothiazine | 13H-Dibenzo[b,i]phenothiazine | C20H13NS | | |
| 21 | 258-79-7 | | Pyrazino[2,3-b:5,6-b']diquinoxaline (8CI,9CI) | C16H8N6 | | |
| 22 | 258-91-3 | Benzo[b]naphtho[2,3-f][1,4]diazocine | Benzo[b]naphtho[2,3-f][1,4]diazocine | C18H12N2 | | |