Synonyms: ACN, Cyanomethane, Ethyl nitrile, Methyl cyanide CAS: 75-05-8 Molecular Formula: CH3CN Molecular Weight: 41.05 g/mol Test Specification Assay (by GC-FID, corrected for water) 99.9% min. Color Pt-Co 10 max. Description Clear, colorless liquid free of suspended matter LC Gradient Elution Suitability at 254 nm 0.005 AU max. Residue after Evaporation (ppm) Results listed on COA Titrable Acid 8 meq/g max. Titrable Base 0.6 meq/g max. UV Absorbance @ 190nm 1.00 AU max. UV Absorbance @ 200nm 0.1 AU max. UV Absorbance @ 210nm 0.05 AU max. UV Absorbance @ 220nm 0.03 AU max. UV Absorbance @ 230nm 0.02 AU max. UV Absorbance @ 254nm 0.01 AU max. UV Absorbance @ 280nm 0.01 AU max. UV Absorbance @ 350nm 0.01 AU max. UV Absorbance @ 400nm 0.01 AU max. Water 0.02% max.