Free beta chorionic gonadotropin (free beta hCG) is a glycoprotein hormone that is produced by the placenta during pregnancy. Structurally intact hCG molecules are made up of two polypeptide subunits which are non-covalently linked together - alpha and beta chain subunits.

ELISA kit information:

• Reactivity: Human
• Sample Type: Serum
• Sensitivity: 0.25 ng/ml