👉 Amyelencephalic is a term that describes a chemical structure present in amylenes and related compounds. It refers to the presence of a hydrogen atom at the 2' position of the carbon-carbon bond (i.e., the "H" group). The presence of an amylenephalic amine, which is a complex combination of an amylenepalic amine and an amine, is also called "amylenephalic amines."