27820-07-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 27820-07-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,7,8,2 and 0 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 27820-07:
(7*2)+(6*7)+(5*8)+(4*2)+(3*0)+(2*0)+(1*7)=111
111 % 10 = 1
So 27820-07-1 is a valid CAS Registry Number.