200716-66-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 200716-66-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,7,1 and 6 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 200716-66:
(8*2)+(7*0)+(6*0)+(5*7)+(4*1)+(3*6)+(2*6)+(1*6)=91
91 % 10 = 1
So 200716-66-1 is a valid CAS Registry Number.