alizarin red S

a·liz·a·rin red S

[C.I. 58005]
sodium a. sulfonate; used as a stain for calcium in bone (calcium appears red-orange; magnesium, aluminum, and barium are varying shades of red), in the determination of fluorine; as a pH indicator it changes from yellow to purple between pH 3.7 and 5.2.
References in periodicals archive ?
australis egg masses were immersed in 200 mg/L of either alizarin red S (ARS), calcein, or oxytetracycline (OTC) for 24 h before viewing under ultraviolet light to allow quantification of mark brightness using image analysis software.
Fortunately, a number of fluorochromes are available to researchers, of which alizarin red S (ARS), calcein, and oxytetracycline (OTC) are often used in experimental studies (Thorrold et al, 2002).
A comparison of the suitability of alizarin red S and calcein for inducing a nonlethally detectable mark in juvenile guppies.
Marking the shell of the saucer scallop Amusium balloti for sea ranching using oxytetracycline, calcein, and alizarin red S.