3730140 -OEChem-02060822572D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3730140 > 2 > ChemIDplus > 006776198 > 2-Butenoic acid, ethyl ester, (Z)- 6776-19-8 Ethyl (Z)-2-butenoate cis-Ethyl crotonate > 6776-19-8 > 006776198 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=006776198 $$$$