kilodalton (as molar mass)
The kilodalton is 1000 daltons, 1.00000000105 kg/mol as a molar mass. It is the working unit of protein biochemistry: albumin is 66 kDa, an antibody 150 kDa, and a gel is read off in kDa against a ladder of standards.
Watch out: Gel and size-exclusion estimates of kDa are apparent masses. Glycosylation, shape and detergent binding all move the number, sometimes by tens of percent, which is why a mass spectrometer and a gel can disagree about the same protein.
| 1 | 1,000 |
One kilodalton (as molar mass) in every molar mass unit
| 1,000 | gram per mole (g/mol) | |
| 1,000 | kilogram per kilomole (kg/kmol) | |
| 1,000 | milligram per millimole (mg/mmol) | |
| 1,000 | pound per pound-mole (lb/lb-mol) | |
| 1,000 | dalton (as molar mass) (Da) | |
| 1 | kilogram per mole (kg/mol) | |
| 1 | kilodalton (as molar mass) (kDa)this unit |
Solvers that use molar mass