or
Acetonitrile, HPLC Grade; Thermo Scientific; 1L; F.W. 41.05; CH3CN; Density 0.780g/mL; CAS: 76-05-8; UV Cutoff: 190nm; Optical Absorbance: <0.02 at 220nm; Refractive Index at 25deg.C: 1.342