IBI offers Spectral Grade Formamide and Blot Washing Formamide. Spectral Grade Formamide is used as a denaturant in hybridization, electrophoresis applications, and to denature DNA and RNA. Blot Washing Formamide is suitable for blot washing procedures to remove background hybridization.
Both products are Molecular Biology Grade and distilled and deionized then packaged under nitrogen gas and bottled in amber bottles to prevent oxidation.
The primary differences between the two types is that the spectral grade has much lower ion content consisting of iron, copper, lead and zinc. This is due to the spectral grade being exposed to a more stringent deionization process during manufacture.