200617-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 200617-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,0,6,1 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 200617-77:
(8*2)+(7*0)+(6*0)+(5*6)+(4*1)+(3*7)+(2*7)+(1*7)=92
92 % 10 = 2
So 200617-77-2 is a valid CAS Registry Number.