73003-89-1

ETHANAMINIUM,N-[4-[[4-(DIETHYLAMINO)PHENYL][4-(ETHYLAMINO)-1-NAPHTHALENYL]METHYLENE]-2,5-CYCLOHEXADIEN-1-YLIDENE]-N-ETHYL-,SALT WITH 3-HYDROXY-2,7-NAPHTHALENEDISULFONIC ACID (2:1)