1-Naphthaleneacetic acid, 5-(2-methylpropyl)- 5-(2-Methylpropyl)-1-naphthaleneacetic acid 5-Isobutyl-1-naphthaleneacetic acid 5-Isobutylnaphthalene-1-acetic acid 72221-66-0 Acide isobutyl-5 naphthyl-1 acetique [French] BRN 2274600