: an isomer that is a stereoisomer of a compound having two or more chiral centers and that is not a mirror image of another stereoisomer of the same compound â
A compact disc is a deceptively simple looking device considering the technology required to make it. 1  CDs consist of three layers of materials: 2  A base layer made of a polycarbonate plastic. 3  A thin layer of aluminum coating over the polycarbonate plastic. 4  A clear protective acrylic coating over the aluminum layer.
But they have the same âlast nameâ â Acrylic. Yes, they are both made of acrylic. Acrylic is a clear high grade plastic made primarily from petroleum. It is a form of plastic but just as there are different types, classes and grades of woods, there are also different types, classes and grades of plastic.