226420-31-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 226420-31-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,6,4,2 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 226420-31:
(8*2)+(7*2)+(6*6)+(5*4)+(4*2)+(3*0)+(2*3)+(1*1)=101
101 % 10 = 1
So 226420-31-1 is a valid CAS Registry Number.