80121-87-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80121-87-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,1,2 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 80121-87:
(7*8)+(6*0)+(5*1)+(4*2)+(3*1)+(2*8)+(1*7)=95
95 % 10 = 5
So 80121-87-5 is a valid CAS Registry Number.