D2(3H),A-NAPHTHALENEMALONONITRILE, 7-[(3-ETHYL-2-BENZOTHIAZOLINYLIDENE)METHYL]-4,4A,5,6-TETRAHYDRO-

[7-[(Z)-(3-ETHYL-1,3-BENZOTHIAZOL-2(3H)-YLIDENE)METHYL]-4,4A,5,6-TETRAHYDRONAPHTHALEN-2(3H)-YLIDENE]MALONONITRILE