AIDS-157271 AIDS157271 Dichloro[2-acetylpyridine-4,4-hexamethylenethiosemicarbazonato-N1, N]gallium(III) NSC637807 {Dichloro[2-acetylpyridine-4,4-hexamethylenethiosemicarbazonato-N1,} N\]gallium(III)