Benzoic acid, 4-propoxy-, 5,6,6a,7-tetrahydro-6-methyl-4H-dibenzo(de,g)quinoline-10,11-diyl ester, 1,5-naphthalenedisulfonate (2:1) DH6510000 O,O'-Di(4-propoxybenzoyl)apomorphine heminaphthalene-1,5-disulfonate