fmol

femtomole

Amount of substanceexact by definition

The femtomole is 10⁻¹⁵ mol, roughly 6 × 10⁸ molecules. It is the detection limit region of modern mass spectrometry, and about the amount of protein in a single mammalian cell for a moderately abundant species.

1 fmol 1.0000000e-15 mol