PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 15784333-3 2005 The pH-independent solubility of the N-butanoyloxymethyl derivate exceeded 1000 mg ml-1 corresponding approximately to a 10,000-fold increase in water solubility compared to that of bupivacaine base. Water 145-150 interleukin 17F Homo sapiens 83-87