202118-70-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 202118-70-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,1,1 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 202118-70:
(8*2)+(7*0)+(6*2)+(5*1)+(4*1)+(3*8)+(2*7)+(1*0)=75
75 % 10 = 5
So 202118-70-5 is a valid CAS Registry Number.