Evan’s blue (C.I. 23860), 5 g

23860) is a professionally supplied chemical reagent, identified as an organic compound with the molecular formula C16H12ClN3NaO6S2 and a molecular weight of 497.3 g/mol. It belongs to the class of azo dyes, characterized by the presence of two nitrogen atoms connected by a double bond, forming an azo group (-N=N-). This compound is known for its intense blue coloration, making it useful as a stain in various biological and chemical applications. Specifically, Evan’S Blue is often employed in histology, where it stains acidic proteins, such as collagen and elastin, in tissues. Additionally, it can serve as a pH indicator, displaying a color change from yellow to blue in acidic conditions. This particular product is offered in a 5 gram pack, providing a suitable quantity for multiple uses in a laboratory setting.

• CAS Number: 314-13-6