872820-78-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 872820-78-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,2,8,2 and 0 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 872820-78:
(8*8)+(7*7)+(6*2)+(5*8)+(4*2)+(3*0)+(2*7)+(1*8)=195
195 % 10 = 5
So 872820-78-5 is a valid CAS Registry Number.