can't read?
Xylene - xylol or dimethylbenzene is any one of three isomers of dimethylbenzene, or a combination thereof. With the formula (CH3)2C6H4.
X 1216 (OTTO) Xylene, sulphur free, 99% Cas 1330-20-7- used as a solvent. In this application, with a mixture of isomers, it is often referred to as xylenes or xylol. Solvent xylene often contains a small percentage of ethylbenzene.