File:Bromothymol blue colors.jpg - Wikimedia Commons
Determination of equilibrium structures of bromothymol blue revealed by using quantum chemistry with an aid of multivariate analysis of electronic absorption spectra - ScienceDirect
Bromothymol blue - Wikipedia
Bromothymol Blue pH Indicator, 1 oz.
Extended low oxygen transmissibility contact lens use induces alterations in the concentration of proinflammatory cytokines, enzymes and electrolytes in tear fluid