HSN Code : 29024100 Synonyms : xylol, dimethylbenzene, 1,2-dimethylbenzene, 1,2-Dimethylbenzol, o-Methyltoluene, o-Dimethylbenzene CAS No. : 95-47-6 Molecular Formula : C8H10 Application : Ortho xylene (OX) is a clear, colourless liquid with sweet characteristic odour. The major application of Orthoxylene is for production of Pthalic Anhydride with other application being in paints, fibreglass, PEN etc.