78989-67-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78989-67-0 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 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 78989-67:
(7*7)+(6*8)+(5*9)+(4*8)+(3*9)+(2*6)+(1*7)=220
220 % 10 = 0
So 78989-67-0 is a valid CAS Registry Number.