science-softCon uv/vis+ spectra data base; www.uv-spectra.de, (C) science-softCon 2019 Substance: cytosine Other Names: 4-aminopyrimidin-2(1H)-one; 4-amino-1H-pyrimidine-2-one Formula: C4H5N3O CAS-No.: 71-30-7 Study: uv absorption spectra Authors: L.B. Clark, I. Tinoco Jr. Title: Correlations in the Ultraviolet Spectra of the Purine and Pyrimidine Bases Journal/Source: J. Am. Chem. Soc., 87 (1), 11-15, (1965); DOI: 10.1021/ja01079a003 Data: diagram, table Energy/Wavelength range: ~ 180 - 300 nm Resolution: Temperature: 298 K Temperature dependence: no Pressure/Concentration: Phase: in trimethyl phosphate (TMP) solution pH: Comments: Absorption maxima are located at 185 nm, 204 nm and 277 nm. Author to whom correspondence should be addressed: (e-mail address):