science-softCon uv/vis+ spectra data base; www.uv-spectra.de; (C) science-softCon 2016 Substance: protoanemonin Other Names: 5-methylidenefuran-2-one Formula: C5H4O2 CAS-No.: 108-28-1 PubChem: 66984 Study: UV absorption spectrum Authors: E. Shaw Title: A synthesis of protoanemonin. The tautomerism of acetylacrylic acid and of penicillic acid Journal/Source: J. Am. Chem. Soc., 68 (12), 2510-2513, (1946); DOI: 10.1021/ja01216a024 Data: diagram, table Energy/Wavelength range: 215 - 285 nm Resolution: Temperature: 298 K Temperature dependence: no Pressure/Concentration: Phase: aqueous solution pH: Comments: Author to whom correspondence should be addressed: (e-mail address):