OVA Conjugated Human Cytokeratin Fragment Antigen 21-1 (CYFRA21-1) is a purified Conjugated Small Molecules. Purity: >90% by SDS-PAGE. Endotoxin Level: <1.0EU per 1ug, by the LAL method. Species: Human (Homo sapiens). Target Name: Cytokeratin Fragment Antigen 21-1 (CYFRA21-1). Accession Number: P08727. Gene ID: 3880. Expression Region: Leu346~Glu359. Buffer: PBS, pH7.4, containing 0.01% SKL, 5% Trehalose. Storage: -20C. Avoid repeated freeze/thaw cycles. Restrictions: For Research Use Only. Not for use in diagnostic procedures.