1,6-HEXANEDISULFON-m-ANISIDIDE, 4',4''-BIS(9-ACRIDINYLAMINO)-, DIHYDROCHLORIDE, 1,6-Hexanedisulfon-m-anisidide, 4',4''-bis(9-acridinylamino)-, dihydrochloride, tetrahydrate 66757-02-6