9002-03-3 Usage
Purification Methods
Dihydrofolate reductase is purified by (NH4)2SO4 precipitation, then fractionation on a Sephadex G-75 column, applied to a Blue Sepharose column and eluted with 1mM dihydrofolate. [Al Rubeai & Dole Biochem J 235 301 1986.]
Check Digit Verification of cas no
The CAS Registry Mumber 9002-03-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,0 and 2 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 9002-03:
(6*9)+(5*0)+(4*0)+(3*2)+(2*0)+(1*3)=63
63 % 10 = 3
So 9002-03-3 is a valid CAS Registry Number.