21322-12-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21322-12-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,3,2 and 2 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21322-12:
(7*2)+(6*1)+(5*3)+(4*2)+(3*2)+(2*1)+(1*2)=53
53 % 10 = 3
So 21322-12-3 is a valid CAS Registry Number.