3786389 -OEChem-02060822582D 0 0 0 0 0 0 0 0 0999 V2000 M END > 3786389 > 2 > ChemIDplus > 090931945 > 90931-94-5 Butanoic acid, 3-((6-(dimethylamino)-3-pyridazinyl)hydrazono)-, 1,1-dimethylethyl ester, HCl Butyric acid, 3-(2-(6-(dimethylamino)-3-pyridazinyl)hydrazinylide)-, tert-butyl ester, hydrochloride > 90931-94-5 > 090931945 > http://chem.sis.nlm.nih.gov/chemidplus/ > http://chem.sis.nlm.nih.gov/chemidplus/direct.jsp?result=advanced®no=090931945 $$$$