820988-77-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 820988-77-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,2,0,9,8 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 820988-77:
(8*8)+(7*2)+(6*0)+(5*9)+(4*8)+(3*8)+(2*7)+(1*7)=200
200 % 10 = 0
So 820988-77-0 is a valid CAS Registry Number.