diff --git a/NAMESPACE b/NAMESPACE
index ba4b64c8..c057c650 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -80,6 +80,7 @@ export(getBaseUnit)
 export(getContainer)
 export(getDimensionByName)
 export(getDimensionForUnit)
+export(getMolWeightFor)
 export(getMolecule)
 export(getOSPSuiteSetting)
 export(getOutputValues)
diff --git a/R/utilities-quantity.R b/R/utilities-quantity.R
index 0b8c3082..7abe00d4 100644
--- a/R/utilities-quantity.R
+++ b/R/utilities-quantity.R
@@ -362,6 +362,7 @@ isExplicitFormulaByPath <- function(path, simulation, stopIfNotFound = TRUE) {
 #' @param stopIfNotFound Logical. If `TRUE`, throws an error when the molecular
 #' weight cannot be retrieved. If `FALSE`, returns `NA`. Default is `FALSE`.
 #' @return The molecular weight in the specified unit or `NA` if not found.
+#' @export
 #'
 #' @examples
 #' simPath <- system.file("extdata", "Aciclovir.pkml", package = "ospsuite")