202452 -OEChem-02060822402D 0 0 0 0 0 0 0 0 0999 V2000 M END > 202452 > 3 > ChemIDplus > H04500000 > H04500000 > H04500000 Hydrogen and methane mixtures, compressed [UN2034] [Flammable gas] UN2034 > H04500000 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=H04500000 $$$$