Abstract: Pharmaceutically acceptable cholecalciferol sulfate salts are used for combating vitamin D3 deficiency. New cholecalciferol sulfate salts as well as pharmaceutical compositions of the pharmaceutically acceptable cholecalciferol sulfate salts are described as well.

Abstract: An improved photosensitizer for a photocathode comprises an oligomeric or polymeric chromphore absorbing, as an ensemble, light at (a) wavelengths at or greater than 420 nm that includes at least 3 identical or different suitable monomeric chromophore units carrying at least two substituents each comprising at least one alkylene, alkenylene and/or alkynylene chain having a chain length of at least 3 carbon atoms, those substituents being terminated by thiol groups, wherein the oligomeric or polymeric chromphore has a disulfide bond between each of the chromophores. A photocathode comprising the photosensitzer is useful for the reduction of water-soluble chemicals in oxidized forms, including protons, with the aid of visible light in a system comprising the photocathode and a photoanode or any other anode or source of electrons. A method for reducing chemicals soluble in aqueous media in oxidized forms, including protons, in aqueous solutions by means of the photocathode is also disclosed.

Abstract: Pharmaceutically acceptable cholecalciferol sulfate salts are used for combating vitamin D3 deficiency. New cholecalciferol sulfate salts as well as pharmaceutical compositions of the pharmaceutically acceptable cholecalciferol sulfate salts are described as well.