2-Bromo-1-thiophen-2-yl-ethanone with cas registry number of 10531-41-6 is also known as 2-Bromo-1-(2-thienyl)-1-ethanone ; 2-Bromo-1-(2-thienyl)ethanone ; Ethanone, 2-bromo-1-(2-thienyl)- ; 2-(2-Bromoacetyl)thiophene ; 2-(2-Bromoacetyl)thiophene 97% ; 2-(Bromoacetyl)thiophene ; 2-Bromo-1-thien-2-ylethanone . It is a compound with the appearance of white to light yellow crystal powder.