87870-79-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87870-79-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,8,7 and 0 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 87870-79:
(7*8)+(6*7)+(5*8)+(4*7)+(3*0)+(2*7)+(1*9)=189
189 % 10 = 9
So 87870-79-9 is a valid CAS Registry Number.