20452-70-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20452-70-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,4,5 and 2 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20452-70:
(7*2)+(6*0)+(5*4)+(4*5)+(3*2)+(2*7)+(1*0)=74
74 % 10 = 4
So 20452-70-4 is a valid CAS Registry Number.