1-Phthalimidobutane 1515-72-6 1H-Isoindole-1,3(2H)-dione, 2-butyl- AI3-02418 EINECS 216-157-5 N-Butylphthalimide NSC 3559 Phthalimide, N-butyl- Phthalimide, N-butyl- (8CI)