Anti-Ethyl glucuronide (EtG) Antibody

This unconjugated monoclonal antibody from Antibodies.com selectively recognizes ethyl glucuronide (EtG), a direct phase II conjugate of ethanol that is widely used in clinical and forensic laboratories as a long-window biomarker of recent alcohol consumption. Because EtG persists in urine and hair for several days after ethanol itself has cleared, immunoassays built around antibodies like this one support workplace testing programs, probation monitoring, liver-transplant eligibility screening, and roadside or post-accident investigations.

The antibody is raised in sheep host animals and supplied as a purified monoclonal preparation at 1 mg per vial, unconjugated so that investigators can pair it with HRP, biotin, or fluorophore-labeled anti-sheep secondaries of their own choosing. It is validated for ELISA workflows, where the small size of the EtG hapten makes competitive assay architectures especially useful for quantitative measurement in dilute urine or hair extract samples.

Shipped refrigerated, the reagent should be kept refrigerated upon arrival with aliquoting recommended to minimize repeated freeze-thaw cycles and preserve binding activity through the product's shelf life.