Wiktionary
isobutylamine
n. (context organic compound English) The aliphatic primary amine ''2-methyl-1-propamine''
Wikipedia
Isobutylamine
Isobutylamine is an organic chemical compound (specifically, an amine) with the formula (CH)CHCHNH, and occurs as a colorless liquid. Isobutylamine is one of the four isomeric amines of butane, the others being n-butylamine, sec-butylamine and tert-butylamine.