Application: Cu(I) detection with solvent extraction, colorimetric
Chemical Name: 2,9-Dimethyl-4,7-diphenyl-1,10-phenanthroline
CAS: 4733-39-5

Appearance: White or yellow crystalline powder
Absorbance: ≥0.810 (around 280 nm)
Absorbance (Cu complex): ≥0.580 (around 475 nm)
MW: 360.45, C26H20N2

Storage Condition: ambient temperature
Shipping Condition: ambient temperature

Chemical Structure

Product Description
Bathocuproine is a Cu(I)-specific colorimetric reagent. An orange Bathocuproine-Cu(I) complex can be extracted with n-hexylalcohol or iso-amylalcohol. The maximum wavelength of the complex extract is 479 nm. The Cu(I) detection range is 0.1-10 ppm. Bathocuproine has been used to determine trace amounts of Cu(I) in wine and purified tellurium samples. Bathocuproine is soluble in organic solvents such as nitrobenzene and insoluble in water.


1. W. M. Banick, et al., The in situ Determination of Iron and Copper in Wine. Anal Chim Acta. 1957;16:464-472.
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