3830128 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > <PUBCHEM_SUBSTANCE_ID> 3830128 > <PUBCHEM_SUBSTANCE_VERSION> 2 > <PUBCHEM_EXT_DATASOURCE_NAME> ChemIDplus > <PUBCHEM_EXT_DATASOURCE_REGID> KD1920940 > <PUBCHEM_SUBSTANCE_COMMENT> NIOSH/KD1920940 > <PUBCHEM_SUBSTANCE_SYNONYM> 2,7-(Epoxypentadeca(1,11,13)trienimino)naphtho(2,1-b)furan-1,11(2H)-dione, 5,6,9,17,19,21-hexahydroxy-2,4,12,16,18,20,22-heptamethyl-23-methoxy-8-((2-pyridylimino)methyl)-, 21-acetate 3-Formylrifamycin SV, N-(2-pyridinyl)hydrazone KD1920940 Rifamycin AF/Py > <PUBCHEM_XREF_EXT_ID> KD1920940 > <PUBCHEM_EXT_DATASOURCE_URL> http://chem.sis.nlm.nih.gov/chemidplus/ > <PUBCHEM_EXT_SUBSTANCE_URL> http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=KD1920940 $$$$