The slope of π vs C was made against insulin concentration (C) in g mL−1 and temperature 27∘C. If C is in g litre−1 and the slope of line obtained is 4.65×10−3g/mL, the molar mass (in g mol−1) of insulin is :
(1) 9×105
(2) 3×105
(3) 4.5×105
(4) 5.30×106