89940-79-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89940-79-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,4 and 0 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 89940-79:
(7*8)+(6*9)+(5*9)+(4*4)+(3*0)+(2*7)+(1*9)=194
194 % 10 = 4
So 89940-79-4 is a valid CAS Registry Number.