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| # | Species | Formula |
| 558 | Methyl(1,1,2-trimethylpropyl)malonodinitrile | C10H16N2 | |
| 559 | Phenazine | C12H8N2 | |
| 560 | Phenazone | C12H8N2 | |
| 561 | cis-Azobenzene | C12H10N2 | |
| 562 | Diphenyl diazene | C12H10N2 | |
| 563 | 4,4'-Dimethyl-2,2'-bipyridine | C12H12N2 | |
| 564 | 1,(1-Piperidinyl) cyclohexanecarbonitrile | C12H20N2 | |
| 565 | a-Phenyl-1-piperidineacetonitrile | C13H16N2 | |
| 566 | 2,2'-Biquinoline | C18H12N2 | |
| 567 | Tetraisobutylsuccinonitrile | C20H36N2 | |
| 568 | Azide | N3 | |
| 569 | Azide (Geo) | N3 | |
| 570 | Hydrazoic acid | HN3 | |
| 571 | Methyl Azide | CH3N3 | |
| 572 | s-Triazine (Geo) | C3H3N3 | |
| 573 | 1,3,5-Triazine | C3H3N3 | |
| 574 | Ethylenetricarbonitrile | HC5N3 | |
| 575 | 1,1,1-Ethanetricarbonitrile | C5H3N3 | |
| 576 | 1,3,5-Tricyanobenzene | C9H3N3 | |
| 577 | 1,1,1-Tricyano-2-phenyl ethane | C11H7N3 | |
| 578 | 2,2',6',2'-Terpyridine | C15H11N3 | |
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