2-(beta-Anilinovinyl)-3-ethylnaphth(2,1-d)oxaxolium ethosulfate 67800-93-5 EINECS 267-116-3 Ethyl 3-ethyl-2-(2-(phenylamino)vinyl)naphth(1,2-d)oxazolium sulphate Naphth(2,1-d)oxazolium, 3-ethyl-2-(2-(phenylamino)ethenyl)-, ethyl sulfate