In the title polymeric complex. [Zn2(C6H2O4S)2(C4H9NO)2]n. each carboxylate group of the thiophene-2. 5-dicarboxylate dianion bridges a pair of inversion-related dimethylacetamide-coordinated ZnII atoms. https://www.markbroyard.com/special-pick-igora-vibrance-6-0-dark-blonde-natural-supply-best-super/