C-reactive protein (CRP) is a pentameter with a range of molecular weights reported.
Molecular weight of monomer: 21,000 to 24,000
Molecular weight of pentameter: 105,000 to 144,000
1 mg/dL = 10 mg/L
If the molecular weight is taken as 105,000 then
1 mg/dL = 95.2381 nmol/L
If the molecular weight is taken as 120,000 then
1 mg/dL = 83.333 nmol/L
If the molecular weight is taken as 130,000 then
1 mg/dL = 76.923 nmol/L
If the molecular weight is taken as 144,000 then
1 mg/dL = 69.444 nmol/L
In Matlab this can be roughly expressed as:
1 mg/dL = 171.7 - (0.7312 * ((molecular weight) / 1000)) nmol/L