chaeotropic
(= chaotropic)
An agent that causes chaos, usually in the sense of disrupting or denaturing macromolecules. For example, iodide is often used in protein chemistry to break up and randomise micelles. In molecular biology guanidium isothiocyanate is used to provide a denaturing environment in which RNA can be extracted intact without exposure to RNAases.

Dictionary of molecular biology. 2004.

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