78984-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78984-87-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,9,8 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 78984-87:
(7*7)+(6*8)+(5*9)+(4*8)+(3*4)+(2*8)+(1*7)=209
209 % 10 = 9
So 78984-87-9 is a valid CAS Registry Number.