2066-51-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2066-51-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,0,6 and 6 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 2066-51:
(6*2)+(5*0)+(4*6)+(3*6)+(2*5)+(1*1)=65
65 % 10 = 5
So 2066-51-5 is a valid CAS Registry Number.