201226-21-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201226-21-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,2,2 and 6 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 201226-21:
(8*2)+(7*0)+(6*1)+(5*2)+(4*2)+(3*6)+(2*2)+(1*1)=63
63 % 10 = 3
So 201226-21-3 is a valid CAS Registry Number.