66870-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66870-87-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,8,7 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 66870-87:
(7*6)+(6*6)+(5*8)+(4*7)+(3*0)+(2*8)+(1*7)=169
169 % 10 = 9
So 66870-87-9 is a valid CAS Registry Number.