What is the difference between acrylic and organic glass?

Is acrylic and organic glass the same thing? From a macro perspective, it is indeed the same. But objectively, there is actually a difference. What are the subtle differences between acrylic and organic glass?
Acrylic has a high surface hardness and glossiness, good processing performance, suitable for mechanical processing, and is easy to form; Excellent weather resistance, high flame resistance, non self igniting, but flammable and not self extinguishing; Resistant to chemical corrosion, suitable for surface decoration such as spraying, screen printing, and film application, recyclable, non-toxic, and harmless.
Organic glass has good heat resistance, cold resistance, insulation, and light transmittance, which can penetrate 99% of the light and 73.5% of the ultraviolet radiation; High mechanical strength, strong impact resistance, low surface hardness, and susceptibility to scratches; The texture is brittle and easily soluble in organic solvents.
The organic glass display rack made of organic glass has the advantages of light weight, low cost, and easy molding. There are many molding methods for acrylic, such as pouring, mechanical processing, hot forming, etc. It can be mass-produced into instruments, car lights, optical lenses, transparent pipes, and so on.