SI derived unit of @[email protected], \(\text{W = J s}^{-1} = \text{m}^{2}\ \text{kg s}^{-3}\).
Sources: Green Book, 2nd ed., p. 72 [Terms] [Book] PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 998 [Terms] [Paper]