  The purpose of this note is to verify that several basic rings appearing in
transchromatic homotopy theory are Noetherian excellent normal domains and thus
amenable to standard techniques from commutative algebra. In particular, we
show that the coefficients of iterated localizations of Morava $E$-theory at
the Morava $K$-theories are normal domains and also that the coefficients in
the transchromatic character map for a fixed group form a normal domain.
