ClearBand ECL Western Blotting Substrate is specifically formulated for highly sensitive, non-radioactive, enhanced luminol-based chemiluminescent substrate for easy detection of horseradish peroxidase (HRP) on immunoblots. ClearBandECL Western Blotting Substrate offers excellent signal to noise ratio and clear background. ECL50 is sufficient for 400 cm²of membrane contents and ECL250 is sufficient for 2000 cm²of membrane contents.