NMR Solvent Impurities

Is there a peak in your NMR spectrum you cannot assign? NMR Solvent Impurities is a fully offline reference for quickly identifying the residual signals of deuterated solvents and the trace impurities commonly met in the lab. PEAK SEARCH • Single peak: choose the solvent, the chemical shift (ppm, ± tolerance) and the splitting (singlet, doublet, triplet, quartet, multiplet…). Exact matches come first, compatible splittings next; incompatible ones are left out. • Multiple peaks: enter several peaks from your spectrum with their splittings, or paste a list such as "2.05 s; 4.12 q; 1.26 t". Impurities are ranked by the number of matching signals, closeness and splitting agreement. • The solvent's own residual peaks and the water peak are searched too. SOLVENTS • 20 deuterated solvents: residual ¹H and ¹³C peaks, J(H,D) and J(C,D) values, water/HOD peak, density, melting and boiling point,…