226905-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 226905-31-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,6,9,0 and 5 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 226905-31:
(8*2)+(7*2)+(6*6)+(5*9)+(4*0)+(3*5)+(2*3)+(1*1)=133
133 % 10 = 3
So 226905-31-3 is a valid CAS Registry Number.