42020-70-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42020-70-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,0,2 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 42020-70:
(7*4)+(6*2)+(5*0)+(4*2)+(3*0)+(2*7)+(1*0)=62
62 % 10 = 2
So 42020-70-2 is a valid CAS Registry Number.