Txoj kev npaj: phenol thiab isobutene tau siav nyob rau hauv lub xub ntiag ntawm zinc chloride los yog tert-butanol yog siv los ua catalyst nrog sulfuric acid ntawm 100 ℃.Cov khoom nyoos yog recrystallized nrog ethanol kom tau txais cov khoom xav tau.
Kev Nyab Xeeb: Tus mob transoral LD50 ntawm nas yog 0.56-3.5g / kg, thiab percutaneous LD50 ntawm luav yog 7.5g / kg.Nyob rau hauv qhov chaw kaw, cov khoom tau siv rau ntawm daim tawv nqaij luav rau 1 hnub thiab pom tias muaj cov nyhuv irritating.Kev kuaj tawv nqaij ntawm 1% Vaseline tau ua tiav ntawm tib neeg lub cev.Tsis muaj qhov khaus pom tom qab ob hnub ntawm kev thov.
Post lub sij hawm: Feb-20-2023