203539 -OEChem-02060822402D 0 0 0 0 0 0 0 0 0999 V2000 M END > 203539 > 3 > ChemIDplus > V00020000 > V00020000 > V00020000 Valeraldehyde (all isomers) > V00020000 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=V00020000 $$$$