(3Z)-3-{4-[bis(2-chloroethyl)amino]benzylidene}-2-benzofuran-1(3H)-one 1(3H)-isobenzofuranone, 3-[[4-[bis(2-chloroethyl)amino]phenyl]methylene]-, (3Z)- InChI=1/C19H17Cl2NO2/c20-9-11-22(12-10-21)15-7-5-14(6-8-15)13-18-16-3-1-2-4-17(16)19(23)24-18/h1-8,13H,9-12H2/b18-13