C9H12

The molecular formula C9H12 may refer to:


 * C3-Benzenes
 * Propylbenzenes
 * Cumene
 * n-Propylbenzene
 * Ethyltoluenes
 * 2-Ethyltoluene
 * 3-Ethyltoluene
 * 4-Ethyltoluene
 * Trimethylbenzenes
 * 1,2,3-Trimethylbenzene
 * 1,2,4-Trimethylbenzene
 * Mesitylene (1,3,5-trimethylbenzene)
 * Ethylidene norbornene
 * Tetravinylmethane
 * Vinyl norbornene