97810-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97810-87-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,8,1 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 97810-87:
(7*9)+(6*7)+(5*8)+(4*1)+(3*0)+(2*8)+(1*7)=172
172 % 10 = 2
So 97810-87-2 is a valid CAS Registry Number.