or to
| "X" CHEMICAL NAME | | |||
| XENON | 7440-63-3 | ZE1280000 | 2036 | |
| O - XYLENE | 95-47-6 | ZE2450000 | 1307 | |
| 2, 4 - XYLENOL | 105-67-9 | ZE5600000 | 2261 | |
| 3, 5 - XYLENOL | 108-68-9 | ZE6475000 | 2261 | |
| XYLENOL (MIXED ISOMERS) | 1300-71-6 | ZE5425000 | 2261 | |
| XYLIDINE (MIXED ISOMERS) | 1300-73-8 | ZE8575000 | 1711 | |
| O - XYLOL | 95-47-6 | ZE2450000 | 1307 | |