Bradford reagent

The Bradford Reagent is a quick and ready-to-use coomassie-binding colorimetric assay to quantify the total amount of protein. When coomassie dye binds protein in an acidic medium, an immediate shift in absorption maximum occurs from 465 nm to 595 nm with a color change from brown to blue.
Note: The concentration of protein should be estimated by reference to absorbance measurements obtained for a series of standard protein dilutions, which are assayed alongside the unknown samples.

The product is stored at 2-8 °C and in an unopened