Ethanol Spectroscopy Uvasol, 1.00980.0500, 500ml is supplied by Merck Millipore. It has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. Ethanol Spectroscopy Uvasol offers best UV transmittance, the transmittance is specified in accordance with Reag. Ph Eur and ACS. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination.