3744661 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3744661 > 2 > ChemIDplus > 054992313 > 54992-31-3 E.C. 3.1.4.41 Sphingomyelin phosphodiesterase D Sphingomyelinase D > 54992-31-3 > 054992313 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=054992313 $$$$