ili γ-butirolactona,
Reakčná zmes 1,1′-(izopropylidén)bis[3,5-dibróm-4-(2,3-dibróm-2-metylpropoxy)benzénu] (CAS RN 97416-84-7) a 1,3-dibróm-2- (2,3-dibróm-2-metylpropoxy)-5-2-[3,5-dibróm-4- (2,3,3-tribróm-2-metylpropoxy)fenyl]propán-2-yl benzénu