A majority of suppliers have reported the clone 18H5 to be a mouse monoclonal antibody specific to the human gene, PDPN, or Podoplanin. Other suppliers describe clone 18H5 to be a mouse monoclonal antibody against human NPPB, or natriuretic peptide B. Indicated applications for antibody clone 18H5 include Western blot, immunohistochemistry, flow cytometry, immunofluorescence, ELISA, and cell sorting.