Non-SI unit of mass (symbol
), equal to the unified atomic mass unit
(atomic mass constant
). It is often used in biochemistry and molecular biology although it was never approved
by the Conférence Général des Poids et Mesures.
PAC, 1996, 68, 957
(Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations
on page 968