21111-76-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21111-76-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,1 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21111-76:
(7*2)+(6*1)+(5*1)+(4*1)+(3*1)+(2*7)+(1*6)=52
52 % 10 = 2
So 21111-76-2 is a valid CAS Registry Number.