radikal univalen, –C5H11.

Merriam-Webster Online Dictionary
amyl (noun)
any of various isomeric alkyl radicals CH− derived from pentane - 5 11
amyl (Wikipedia)

Amyl may refer to:

  • Amylum or starch, a carbohydrate
    • Amylopectin, a polymer of glucose found in plants; one of two components of starch
    • Amylose, a helical polymer made of α-D-glucose units; one of two components of starch
  • Pentyl, a five-carbon alkyl functional group, also known by the common non-systematic name amyl
  • Amyl nitrite, also known as Amyl when used as a recreational drug