2-Naphthyl isocyanate 2-Naphthylisocyanate 2243-54-1 3-12-00-03051 (Beilstein Handbook Reference) AI3-08868 BRN 0775794 EINECS 218-815-7 NAPHTHALENE, 2-ISOCYANATO- NSC 5529 beta-Naphthylisocyanate