D 2027 (OTTO) N,N-Dimethylformamide, GR 99%+ Cas 68-12-2 - used to solubilize MTT crystals in cell viability assays. D 2027 N,N-Dimethylformamide, GR 99%+ Cas 68-12-2 used in feruloyl esterase activity assay in molds exhibiting high activity of the enzyme.