81877-85-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81877-85-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,8,7 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 81877-85:
(7*8)+(6*1)+(5*8)+(4*7)+(3*7)+(2*8)+(1*5)=172
172 % 10 = 2
So 81877-85-2 is a valid CAS Registry Number.