The Naphtha (petroleum),hydrodesulfurized heavy, with the CAS registry number 64742-82-1, is also known as Hydrodesulfurized heavy naphtha. It belongs to the product categories of Essential Chemicals;Reagent Grade;Routine Reagents.Its EINECS number is 265-185-4. What's more,Its systematic name is Naphtha (petroleum),hydrodesulfurized heavy.It is a a complex combination of hydrocarbons obtained from a catalytic hydrodesulfurization process. It consists of hydrocarbons having carbon numbers predominantly in the range of C7 through C12 and boiling in the range of approximately 90.degree.C to 230.degree.C.