2-Vinyl-5-ethylpyridine 3-Ethyl-6-vinylpyridine 5-20-06-00281 (Beilstein Handbook Reference) 5-Ethyl-2-vinylpyridine 5408-74-2 BRN 0106681 EINECS 226-475-6 NSC 8395 Pyridine, 2-ethenyl-5-ethyl- (9CI) Pyridine, 2-vinyl-5-ethyl- Pyridine, 5-ethyl-2-vinyl-