science-softCon uv/vis+ photochemistry database;	www.photochemistry.org; (C) science-softCon 2020

Substance: berberine	 				Other Names: umbellatine

Formula: C20H18NO4+					CAS-No.: 2086-83-1	PubChem: CID 2353

Study: UV absorption spectra, fluorescence spectra


Authors: M. Diaz, M.L. Freile, M. Gutierrez

Title: Solvent effect on the UV/Vis absorption and fluorescence spectroscopic properties of berberine

Journal/Source: Photochem. Photobiol. Sci.,8, 970-974, (2009); https://doi.org/10.1039/B822363G


Data: table, diagram

Energy/Wavelength range: 220 - 490 nm

Resolution: 1 nm

Temperature: 298 K

Temperature dependence: no

Pressure/Concentration: 1 x 10^-5 - 2 x 10^-4

Phase: solution (water, acetonitrile, 2-propanol, methanol, ethanol)

pH: 


Comments: The absorption and emission maxima were found to be between 421-431 nm and 514-555 nm, respectively.
quantum yield of 1.4 (± 0.1) x 10-3 mol Ein-1.