3813843 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3813843 > 2 > ChemIDplus > 137426198 > 137426-19-8 Porphy paste prevodontic Prevodontic > 137426-19-8 > 137426198 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=137426198 $$$$