Ratio of the mass of a molecule to the @U06554@. Sometimes called the @M04000@ or @R05270@.
Sources: Green Book, 2
nd ed., p. 41 [
Terms] [
Book]
PAC, 1996,
68, 957. (
Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 990 [
Terms] [
Paper]