3731538 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3731538 > 2 > ChemIDplus > 009042028 > 9042-02-8 Chitosan, N-formyl, hydrogen sulfate (ester) N-Formylchitosan polysulfuric acid Ro 1-8307 > 9042-02-8 > 009042028 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=009042028 $$$$