Crotonyl alcohol; 1-Hydroxy-2-butylene; 2-buten-1-ol; crotyl alcohol; 2-Butenol; 2-Butenyl alcohol; 2-butenylalcohol; Krotylalkohol; Methylallylalcohol; 1-HYDROXY-2-BUTENE; 2-BUTENE-1-OL; Crotyl alcohol; 2-Buten-1-ol; (2E)-but-2-en-1-ol; (2Z)-but-2-en-1-ol