20716-05-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20716-05-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,1 and 6 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 20716-05:
(7*2)+(6*0)+(5*7)+(4*1)+(3*6)+(2*0)+(1*5)=76
76 % 10 = 6
So 20716-05-6 is a valid CAS Registry Number.