2011-51-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2011-51-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,1 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2011-51:
(6*2)+(5*0)+(4*1)+(3*1)+(2*5)+(1*1)=30
30 % 10 = 0
So 2011-51-0 is a valid CAS Registry Number.