PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 29054149-10 2017 The structures of eight impurities in cefpiramide drug substance were deduced based on the HPLC-MSn data, in which seven impurities were novel impurities. cefpiramide 38-49 moesin Homo sapiens 96-99