((4-((2-(2-Benzothiazolylthio)ethyl)ethylamino)-2-methylphenyl)methylene)malononitrile 34613-03-1 61951-66-4 EINECS 252-112-6 Propanedinitrile, ((4-((2-(2-benzothiazolylthio)ethyl)ethylamino)-2-methylphenyl)methylene)-