3742993 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > <PUBCHEM_SUBSTANCE_ID> 3742993 > <PUBCHEM_SUBSTANCE_VERSION> 2 > <PUBCHEM_EXT_DATASOURCE_NAME> ChemIDplus > <PUBCHEM_EXT_DATASOURCE_REGID> 051541323 > <PUBCHEM_SUBSTANCE_SYNONYM> 51541-32-3 7-Bromo-7,8-didemethyl-8-ethylriboflavin 7-Bromo-8-ethyl-10-(1'-D-ribityl)isoalloxazine 7-Bromo-8-ethylriboflavin Riboflavin, 7-bromo-7,8-didemethyl-8-ethyl- > <PUBCHEM_GENERIC_REGISTRY_NAME> 51541-32-3 > <PUBCHEM_XREF_EXT_ID> 051541323 > <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=051541323 $$$$