butyl

butyl

of, consisting of, or containing any of four isomeric forms of the group C₄H₉--

Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

butyl

[′byüd·əl]

(organic chemistry)

Any of the four variations of the hydrocarbon radical C₄H₉: CH₃CH₂CH₂CH₂‒, (CH₃)₂CHCH₂‒, CH₃CH₂CHCH₃‒, and (CH₃)₃C‒.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.