Formula: CH₃CN CAS: 75-05-8 EC No.: 200-835-2 M (Molar Mass): 41.05 g/mol D (Density): 0.786 g/mL (at 20°C) mp (Melting Point): -45°C bp (Boiling Point): 81.6°C Flash Point: 6°C Grade: HPLC/UV Spectroscopy Grade Appearance: Clear, colorless liquid

Assay (GC): ≥ 99.9%. Appearance: Clear, colorless liquid. UV Transparency (1 cm cell): A200 ≥ 60%, A210 ≥ 80%, A220 ≥ 90%, A230 ≥ 95%, A254 ≥ 99%. Residue on Evaporation: ≤ 0.0001%. Water Content (Karl Fischer): ≤ 0.005%. Fluorescence: No significant fluorescence at 254 nm and 366 nm. HPLC Gradient Grade: Suitable for gradient elution HPLC. GC Purity: ≥ 99.95% by area. Filtered: Through 0.2μm PTFE membrane filter. UV Cutoff: ≤ 190 nm. Refractive Index: 1.3442 ± 0.0005 at 20°C. Gradient Baseline Drift: ≤ 0.5 mAU over 60 minutes.