Dougherty, G. published the artcileA comparison of the base-pair specificities of three phenanthridine drugs using solution spectroscopy, Safety of Dimidium bromide, the publication is International Journal of Biochemistry (1982), 14(6), 493-504, database is CAplus and MEDLINE.
Absorption spectra of ethidium [1239-45-8], dimidium [518-67-2], and prothidium bromides [14222-46-9] bound to natural DNAs of differing G-C content were obtained using a novel mixing scheme and analyzed according to the excluded site binding model. Ethidium bromide showed a strong G-C specificity at low binding ratios, especially at low ionic concentration Dimidium bromide showed a less strong G-C specificity. For both drugs, the binding site size reflected a situation close to nearest-neighbor exclusion. Prothidium bromide showed no specificity in its binding. The binding modes were different than for the other 2 phenanthridines, suggesting that the primary mode is sideways intercalation.
International Journal of Biochemistry published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C20H18BrN3, Safety of Dimidium bromide.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary