In human body, pendrin is responsible for the uptake of this element. Rhodium bound to carbon, oxygen, and this element is used as a catalyst in the Monsanto process. It is complexed to three acetal groups in Dess-Martin oxidation, and the formation of alpha-aminophosphonates can be catalyzed by it in a variation of the Kabachnick-Fields reaction. 
In human body, pendrin is responsible for the uptake of this element. Rhodium bound to carbon, oxygen, and this element is used as a catalyst in the Monsanto process. It is complexed to three acetal groups in Dess-Martin oxidation, and the formation of alpha-aminophosphonates can be catalyzed by it in a variation of the Kabachnick-Fields reaction. Addition of it in its diatomic form is the first step in a reaction that yields anti-diols, the Prévost reaction, while a methyl halide compound containing this element is used in Hofmann elimination. When mixed with starch, it turns a dark blue color, which is the key visual feature of the clock reaction. For ten points, name this element, the heaviest non-radioactive halogen.
In human body, pendrin is responsible for the uptake of this element.